Power shell конвертировать файлы xlsx в csv

I have a script that outputs and manipulates csv files. I want to do this without writing any files. Is there a way to hold everything in variables and get the same results? I am still new at this so I want to find a better way of doing things to keep my scripts clean. Any help with formatting or restructuring the script to make it more efficient would be very much appreciated.

# Export
$parsedbody1 | Export-Csv C:\windows\temp\parsedbody.Csv
# Import and select the desired properties
Import-Csv C:\windows\temp\parsedbody.Csv | Select-Object id, startepoch, ackedepoch | Export-csv C:\windows\temp\parsedbody1.csv
# Import and add column timetoack fill with 0
Import-Csv C:\windows\temp\parsedbody1.csv | Select-Object *,@{name='timetoack';Expression={'0'}} | Export-csv C:\windows\temp\parsedbody2.csv
# ackedepoch-startepoch=timetoack
$parsedbody2 = Import-Csv -path C:\windows\temp\parsedbody2.csv Foreach ($field in $parsedbody2) { $field.timetoack = $field.ackedepoch - $field.startepoch }
$parsedbody2 | Export-Csv -path C:\windows\temp\parsedbody3.csv
#remove all columns other than ID and timetoack
Import-Csv -path C:\windows\temp\parsedbody3.csv | Select * -ExcludeProperty startepoch | Export-Csv -path C:\windows\temp\parsedbody4.csv
Import-Csv -path C:\windows\temp\parsedbody4.csv | Select * -ExcludeProperty ackedepoch | Export-Csv -path C:\windows\temp\parsedbody5.csv
#Divide time to ack by 60 to get minutes
$parsedbody5 = Import-Csv -path C:\windows\temp\parsedbody5.csv Foreach ($field in $parsedbody5) { $field.timetoack = $field.timetoack/60 }
$parsedbody5 | Export-Csv -path C:\windows\temp\parsedbody6.csv
#import final csv into a variable and cleanup files
$idtta = Import-Csv -path C:\windows\temp\parsedbody6.csv
del C:\windows\temp\parsedbody.csv
del C:\windows\temp\parsedbody1.csv
del C:\windows\temp\parsedbody2.csv
del C:\windows\temp\parsedbody3.csv
del C:\windows\temp\parsedbody4.csv
del C:\windows\temp\parsedbody5.csv
del C:\windows\temp\parsedbody6.csv

Here is what is contained in $parsedbody1 usually there are several of these contained in the variable:
id : DS2624511
type : dataSourceAlert
internalId : LMD513444
startEpoch : 1694574968
endEpoch : 0
acked : True
ackedEpoch : 1695400492
ackedBy : [email protected]ackComment : Comment
rule : Error
ruleId : 2
chain : Error
chainId : 5
subChainId : 0
nextRecipient : 113
receivedList : {"sms":["username"],"email":["[email protected]"]}
severity : 3
cleared : False
sdted : False
SDT :
alertValue : 113.5121
threshold : > 60 90 120
clearValue :
monitorObjectId : 2324
monitorObjectType : device
monitorObjectName : devicename - ipaddress
monitorObjectGroups :
resourceId : 24773
resourceTemplateId : 420
resourceTemplateType : DS
resourceTemplateName : System Uptime
instanceId : 2914087
instanceName : WinSystemUptime
instanceDescription :
dataPointName : UptimeDays
dataPointId : 4136
detailMessage :
customColumns :
enableAnomalyAlertSuppression :
enableAnomalyAlertGeneration : 

asked Oct 6, 2023 at 15:37

Your code can be reduced to this using a calculated property with Select-Object:

$parsedbody1 | Select-Object id, @{ N = 'timetoack'; E = { $_.ackedepoch - $_.startepoch }} | Export-Csv 'theFinalThing.csv' -NoTypeInformation

If you don’t want to export the resulting array of objects, and hold them in memory instead:

$theFinalThing = $parsedbody1 | Select-Object id, @{ N = 'timetoack'; E = { $_.ackedepoch - $_.startepoch }}

If above syntax is hard to understand, you might have an easier time by just using PSCustomObjects:

$parsedbody1 | ForEach-Object { [pscustomobject]@{ id = $_.id timetoack = $_.ackedepoch - $_.startepoch }
} | Export-Csv ....

answered Oct 6, 2023 at 15:46

Are you looking for a quick and easy way to import CSV files into PowerShell? Importing data from CSV files is one of the most useful tasks when working with large datasets. With PowerShell’s numerous cmdlets, it’s easy to quickly parse through your CSVs and use them as input for automated scripts or other processes.

Understanding the Import-CSV cmdlet and parsing CSV files are essential skills for any PowerShell professional. In this article, I will guide you through the process of importing CSV files using PowerShell. We will explore various methods to import CSV files with PowerShell, using ForEach loops, and how to handle common issues that may arise.

Introduction to Importing CSV Files Using PowerShell

PowerShell is a command-line shell and scripting language that is widely used in the IT industry. PowerShell offers a powerful set of tools for managing and automating Windows-based systems. One of the most useful features of PowerShell is its ability to import and export CSV files.

Understanding the PowerShell Import-CSV Cmdlet

PowerShell provides a built-in cmdlet called Import-Csv, which allows you to import CSV files into your PowerShell environment. This cmdlet reads the contents of a CSV file and converts it into a collection of objects, making it easier to work with and manipulate the data.

The Import-Csv cmdlet automatically detects the headers in the CSV file and uses them to name the properties of the objects it creates. This makes it convenient to access and manipulate the data using familiar property syntax.

The Import-CSV Syntax

The basic syntax of the Import-Csv cmdlet is:

Import-Csv
[-Path] <string[]>
[-Delimiter <char>]
[-Header <string[]>]
[-Encoding <string>]
[-UseCulture]
[-LiteralPath <string[]>]
[<CommonParameters>]

Import-CSV -Path "<Path of the CSV File>"

Example: Reading CSV Files Using PowerShell

Reading CSV files using PowerShell allows you to view the contents of a CSV file quickly. You can use the Import-CSV cmdlet to read the contents of a CSV file and display them in the PowerShell console. To use the Import-CSV command, you must provide the path to the CSV file. The path can be a local file path or a network path.

Importing CSV files using PowerShell is a straightforward process. You can use the Import-CSV cmdlet to import CSV files and create custom objects based on the CSV headers. Here’s an example of how to read a CSV file using PowerShell:

#Import the CSV
$CSVData = Import-CSV -Path "C:\Scripts\Users.csv"
#Get the data in Table-like format
$CSVData | Format-Table
#Display the data in Grid View from Pipeline input
$CSVData | Out-Gridview

$CSVData | Select-Object -ExpandProperty Mail

$CSVData | Get-Member -MemberType NoteProperty | Select -ExpandProperty Name

You can also use the ConvertFrom-CSV and ConvertTo-CSV cmdlets to convert CSV strings to objects and vice versa.

Specifying Delimiters

By default, the Import-CSV cmdlet assumes that commas separate the columns in the CSV file. However, you can specify a different delimiter in PowerShell, such as a colon (:) or semicolon (;), using the -Delimiter parameter. For example, if your CSV file uses semicolons as item delimiter, you can import it like this:

Import-CSV -Path <Path to CSV file> -Delimiter ";"

Parsing CSV File Data in PowerShell Script

The Import-CSV cmdlet reads a CSV file and converts it into a table of objects, making it easy to work with in PowerShell. After importing the CSV data, you can access individual rows and columns as you would with any array of objects. This allows you to perform various operations like filtering, sorting, and selecting specific fields from the objects.

Select Specific columns from the CSV File

Parsing CSV files using PowerShell allows you to extract specific data from a CSV file. You can use the Select-Object cmdlet to select specific columns from a CSV file. Here’s an example of how to parse a CSV file using PowerShell:

#Import data from CSV file
$CSVData = Import-CSV -Path "C:\Temp\Employees.csv"
# Select specific columns from the pipeline
$SpecificData = $CSVData | Select-Object Name, Designation
# Display the data in Table format
$SpecificData | Format-Table

This code imports the CSV file located at “C:\Temp\Employees.csv” and selects specific columns using the Select-Object cmdlet. You can also filter rows based on specific criteria using the Where-Object cmdlet.

Filtering Data

PowerShell treats the imported CSV data as a collection of objects, allowing you to use familiar object-oriented techniques to interact with the data. We can use the Where-Object cmdlet to filter the imported CSV data based on specific criteria. For example, to retrieve all with the designation “Web Developer”:

$CSVData | Where-Object { $_.Designation -eq "Web Developer" }

Let’s take another example: Say your imported file has an “Age” column, and you want to get rows where the age is greater than or equal to 18.

$CsvData = Import-Csv .\data.csv
$Results = $CsvData | Where-Object { $_.Age -ge 18 }
$Results

This code filters the imported CSV data to only include records where the “Age” property is greater than or equal to 18 and then displays the resulting records.

Sorting Data

Sorting data is another common operation when working with CSV files. Like other PowerShell cmdlets, we can use the Sort-Object cmdlet to sort the imported CSV data based on one or more properties. For example, to sort the data by name in ascending order:

$CSVData | Sort-Object Name

Adding Calculated Properties

Sometimes, you may need to add calculated properties to your CSV data. PowerShell allows us to do this easily using the Select-Object cmdlet. For example, to add a calculated property called “FullName” that combines the first and last names:

$CSVData | Select-Object Name, @{Name="DisplayName"; Expression={ $_.FirstName + " " + $_.LastName }}

Exporting Data

After manipulating and managing the CSV data, you may want to export it back to a CSV file or another format. PowerShell provides the Export-CSV cmdlet for this purpose. For example, to export the modified data to a new CSV file:

$modifiedData | Export-CSV -Path <Path to new CSV file>

In PowerShell version 6 and later, the NoTypeInformation parameter is optional. It is used to remove the type information header from CSV output.

Importing CSV Files Using PowerShell with a ForEach Loop

The foreach loop is a powerful construct in PowerShell that allows you to iterate over a collection of objects and perform actions on each item. Combining the Import-Csv cmdlet with a foreach loop can be useful when you need to perform operations on each record in a CSV file. This is useful for performing batch operations on large sets of data.

$CSVData = Import-CSV C:\Data\Users.csv
ForEach ($Row in $CSVData) { Write-Host $Row.Name
}

You can also use the “ForEach-Object” loop to iterate through each row of the CSV file and perform some action. Here is an example:

# Import the CSV file
$CSVData = Import-Csv -Path "C:\Data\Users.csv"
# Process each row
$CSVData | ForEach-Object { # Display the value of the "Name" column for the current row Write-Output $_.Name
}

In this script, Import-Csv is used to import the data from the CSV file into a table of objects, which is stored in the $CSVData variable. The ForEach-Object cmdlet (aliased as %) then iterates over each object in the table.

Validating CSV File Data in PowerShell

When importing data from CSV files in PowerShell, you can check if specific cells have values. You can access the values in the CSV by treating the imported data as an array of objects. Here’s an example of how to do this:

Name,Email,Phone
John Doe,johndoe@example.com,
Alice Smith,,123-456-7890
Bob Johnson,bobj@example.com,987-654-3210

You can use Import-Csv to read this CSV file and check if specific cells have values:

# Import the CSV file
$data = Import-Csv -Path "data.csv"
# Loop through each row in the CSV
foreach ($row in $data) { # Check if the 'Name' column has a value if ($row.Name) { Write-Host "Name: $($row.Name)" } else { Write-Host "Name is empty or null." } # Check if the 'Email' column has a value if ($row.Email) { Write-Host "Email: $($row.Email)" } else { Write-Host "Email is empty or null." } # Check if the 'Phone' column has a value if ($row.Phone) { Write-Host "Phone: $($row.Phone)" } else { Write-Host "Phone is empty or null." } Write-Host "" # Add a blank line between rows for clarity
}

For each row, we check if specific columns (in this case, ‘Name’, ‘Email’, and ‘Phone’) have values using conditional statements.

When importing a CSV file that contains headers, PowerShell automatically uses the headers to name the properties of the objects created from the CSV data. This allows you to access the data using familiar property syntax. For example, if your CSV file has a “Name” column, you can access the values in that column by referencing the “Name” property of the imported objects.

Importing CSV files with headers using PowerShell is the default behavior of the Import-CSV cmdlet. The cmdlet creates custom objects based on the headers of the CSV file.

Here’s an example of how to import a CSV file with headers using PowerShell:

$Data = Import-CSV C:\Data\Employee.csv

This code imports the CSV file located at “C:\Data\Employee.csv” and creates custom objects based on the headers of the file.

$data = Import-CSV C:\Scripts\Employee.csv -Header "UserPrincipalName","GivenName","Email"

This code imports the CSV file located at C:\Data\Employee.csv and creates custom headers for each column. When using the Header parameter with Import-Csv, remove the actual header row from the CSV file. This prevents Import-Csv from generating an extra object based on the header row’s items.

Please note that the excess data columns will be ignored when you specify fewer column headers than the number of data columns. Conversely, if you provide more column headers than there are data columns, the surplus headers will be accompanied by columns without data.

Importing CSV Files into an Array in PowerShell

In addition to importing CSV files into PowerShell as objects, you can also import them into arrays. Importing CSV files into arrays can be useful when you need to perform operations that require sequential or indexed access to the data. Here’s how you can achieve it:

1. Import the CSV file using the import-csv cmdlet and assign it to a variable. For example: $csvData = import-csv C:\Path\to\file.csv
2. The imported CSV data is now stored in the $csvData variable, which you can access and manipulate as needed using array indexing and other array-related operations.

Importing CSV files into arrays allows you to perform advanced data manipulation operations, such as sorting, filtering, and aggregating data. Here is an example:

# Import the CSV file
$Array = Import-Csv -Path "C:\Scripts\Users.csv"
# Now, $array is an array of objects. Each object corresponds to a line in the CSV file. E.g., to Get the first row:
$row = $array[0]
# Get the value of the 'Name' column in the first row
$name = $row.Name

Best practices for importing and working with CSV files in PowerShell

1. Validate the CSV file: Before importing the CSV file, check its structure and contents to ensure that it meets your expectations. Verify that the headers and data are correctly formatted and that there are no missing or inconsistent values.
2. Handle data type conversions: CSV files store all data as text, even if the original values were of a different data type. When working with imported CSV data, make sure to handle any necessary data type conversions using PowerShell’s casting or conversion operators.
3. Use error handling: When importing CSV files, there may be cases where the data does not conform to the expected format or contains errors. Implement error-handling mechanisms to gracefully handle such situations and provide meaningful feedback to the user.
4. Consider memory usage: Importing large CSV files into PowerShell can consume a significant amount of memory. If you are working with large datasets, consider using techniques like streaming or incremental processing to minimize memory usage and improve performance.
5. Always specify the delimiter if it’s different from the default comma (,) to ensure proper data import.
6. Take advantage of filtering, sorting, and calculated properties to manipulate and manage the data effectively.

Troubleshooting Common Issues When Importing CSV Files Using PowerShell

Importing CSV files using PowerShell can sometimes lead to issues. Here are some common issues and how to troubleshoot them:

• CSV file contains special characters: If the CSV file contains special characters, such as accents or non-English characters, you may need to specify the encoding when importing the file. Use the -Encoding parameter with the Import-CSV cmdlet to specify the encoding.
• CSV file is not found: If the CSV file is not found, make sure that the path is correct and that you have permission to access the file.
• CSV file contains empty columns or rows: If the CSV file contains empty columns or rows, use the Delimiter parameter to specify the delimiter used in the file. If the delimiter is not a comma, use the -Delimiter parameter to specify the delimiter.

So, mostly it could be due to an invalid file path, incorrect delimiter character, or mismatched data types for columns.

Conclusion and Final Thoughts

In this comprehensive guide, we explored the process of importing CSV files in PowerShell. We started by understanding the basics of data management and the role of CSV files in this process. We then delved into the import-csv cmdlet, providing an overview of its functionality and capabilities.

What is Import-CSV used for?

Import-CSV is a PowerShell cmdlet used to read data from a comma-separated values (CSV) file and convert it into PowerShell objects. You can then manipulate and analyze the data using other PowerShell cmdlets.

How do I use Import-CSV?

The basic syntax is Import-Csv -Path "C:\path\to\your\file.csv". Replace the path with the actual location of your CSV file. You can also use wildcards or specify additional parameters like Delimiter for different separators.

How do I copy data from CSV to Excel using PowerShell?

How to display output in table format in PowerShell?

How to import multiple CSV files in PowerShell?

How do I read a CSV file line by line in PowerShell?

How do I read data from Excel in PowerShell?

How to export an array to CSV in PowerShell?

What happens if my CSV file has no headers?

By default, Import-CSV uses the first row as headers. If there are no headers, you can use the Header parameter to specify an alternative row for headers.

Can I import only specific columns from my CSV?

Recently, I got a requirement to import data from a CSV (Comma Separated Values) file into an array in PowerShell for further processing. In this tutorial, I will show you how to import CSV data into an array in PowerShell using different methods with examples.

A CSV file is a plain text file that contains data separated by commas. Each line in a CSV file typically represents a data record, and each record consists of one or more fields separated by commas. CSV files are widely used for data exchange because they are easy for many applications to create, read, and process.

There are different methods to import CSV to an array in PowerShell.

What is the Import-Csv Cmdlet

PowerShell offers a built-in cmdlet called Import-Csv that is designed specifically for reading CSV files and converting them into objects. According to the Microsoft documentation, the Import-Csv cmdlet creates table-like custom objects from the items in CSV files, with each column becoming a property of the custom object.

The easiest way to import CSV data into PowerShell is by using the Import-Csv cmdlet. This cmdlet reads the CSV file and converts it into an array of objects, where each object represents a row in the CSV file.

Here’s a basic example:

$data = Import-Csv -Path "C:\MyFolder\Users.csv"

In this example, $data is an array where each element is a custom object with properties corresponding to the column headers in the CSV file.

After importing the CSV data, you can process each record using a ForEach loop. Here’s an example that displays each record:

$data = Import-Csv -Path "C:\MyFolder\Users.csv"
foreach ($record in $data) { Write-Host "Name: $($record.Name), Email: $($record.Email)"
}

Assuming the CSV file has columns named “Name” and “Email,” this script will print out the name and email of each record.

Now look at the output in the screenshot below, after I executed the script using VS code.

If your CSV file doesn’t contain headers, you can specify them using the -Header parameter:

$headers = "Name", "Email", "Department"
$data = Import-Csv -Path "C:\MyFolder\Users.csv" -Header $headers

Now, $data will use the provided headers to create objects.

Some CSV files may use different delimiters, such as semicolons or tabs. You can specify the delimiter with the -Delimiter parameter:

$data = Import-Csv -Path "C:\MyFolder\Users.csv" -Delimiter ";"

An ArrayList is a dynamic array that can grow or shrink as needed. To import CSV data into an ArrayList, you can use the Import-Csv cmdlet in combination with a ForEach loop:

[array]$data = @()
Import-Csv -Path "C:\MyFolder\Users.csv" | ForEach-Object { $data += $_
}

This script reads the CSV file and adds each record to the $data array.

Import CSV to Array in PowerShell – Real Example

Id,Name,Email
1,John Doe,johndoe@example.com
2,Jane Smith,janesmith@example.com
3,Emily Jones,emilyjones@example.com

# Import the CSV file into an array
$usersArray = Import-Csv -Path "C:\MyFolder\users.csv"
# Loop through the array and display user details
foreach ($user in $usersArray) { Write-Host "User ID: $($user.Id)" Write-Host "Name: $($user.Name)" Write-Host "Email: $($user.Email)" Write-Host "-------------------"
}

Once you execute the above PowerShell script, you will see the output in the screenshot below.

User ID: 1
Name: John Doe
Email: johndoe@example.com
-------------------
User ID: 2
Name: Jane Smith
Email: janesmith@example.com
-------------------
User ID: 3
Name: Emily Jones
Email: emilyjones@example.com
-------------------

Conclusion

Importing CSV data into an array in PowerShell can be achieved easily using the Import-Csv cmdlet. In this PowerShell tutorial, I have explained how to import CSV to an Array in PowerShell using Import-Csv Cmdlet.

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To read a CSV file line by line in PowerShell, you can use the Import-Csv cmdlet combined with a foreach loop to process each row as an object. For larger files, consider using the .NET StreamReader class to read the file more efficiently, handling each line as a string and processing it accordingly. These methods allow you to handle data row by row, managing memory usage effectively, especially with large datasets.

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For this particular tutorial, I have taken a CSV file having a few columns like:

• Index
• Customer ID
• First Name
• Last Name
• Company, etc.

Here is what the CSV file looks like and if you want to use this sample CSV file, then you can download it.

Read CSV File using Import-Csv Cmdlet in PowerShell

In PowerShell, to read CSV files you can use the Import-Csv cmdlet. This cmdlet reads the CSV file and converts it into a table-like custom object where each column becomes a property of the object. Here’s a basic example of how to use Import-Csv:

$csvData = Import-Csv -Path "C:\MyFolder\Customers.csv"
foreach ($line in $csvData) { # Process each line here Write-Host $line.'Customer Id', $line.'First Name'

In this example, Customer Id and First Name are the headers of the columns in the CSV file. The foreach loop iterates through each line of the CSV as an object, and you can access each column’s value using the $line.ColumnName syntax.

You can see the output in the screenshot below:

While Import-Csv reads the entire CSV into memory in PowerShell, which is fine for small files, you might want to process each line individually, especially when dealing with large files. To do this, you can combine Import-Csv with the ForEach-Object cmdlet like below:

Import-Csv -Path "C:\MyFolder\Customers.csv" | ForEach-Object { # Process each line here Write-Host $_.'Customer Id' $_.'First Name'
}

Here, $_ represents the current object in the pipeline, allowing you to access each line’s column data as it’s processed.

Here, you can see the output after I executed the PowerShell script using VS code.

Using StreamReader for Large Files

For very large CSV files, Import-Csv might not be efficient as it loads the entire file into memory. In such cases, you can use the .NET StreamReader class to read the file line by line in PowerShell. Here is the complete script.

$streamReader = [System.IO.StreamReader] "C:\MyFolder\Customers.csv"
while ($line = $streamReader.ReadLine()) { # Skip the header line if ($streamReader.BaseStream.Position -eq 0) { continue } # Process the line here, splitting by comma for CSV fields $fields = $line.Split(',') Write-Host $fields[0] $fields[1]
}
$streamReader.Close()

This script opens the CSV file for reading and processes each line, excluding the header. It splits each line by commas to access individual fields.

Custom Delimiters and the Import-Csv Cmdlet

Sometimes, CSV files may use delimiters other than commas. PowerShell’s Import-Csv cmdlet can handle custom delimiters using the -Delimiter parameter:

$csvData = Import-Csv -Path "C:\MyFolder\Customers.csv" -Delimiter ";"
foreach ($line in $csvData) { # Process each line here Write-Host $line.ColumnName1 $line.ColumnName2
}

Replace ";" with the appropriate delimiter character used in your CSV file.

Handling Special Characters and Enclosures

CSV files can contain special characters or enclosures, such as quotation marks to handle commas within a field. PowerShell automatically manages these when using Import-Csv:

$csvData = Import-Csv -Path "C:\MyFolder\Customers.csv"
foreach ($line in $csvData) { # PowerShell handles fields with commas enclosed in quotes Write-Host $line.ColumnName1 $line.ColumnName2
}

Conclusion

In this PowerShell tutorial, I have explained how to read csv file line by line in PowerShell. The best way to read CSV files in PowerShell is to use the Import-Csv Cmdlet.

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PowerShell is a powerful scripting language that can manipulate various types of data, such as arrays, objects, and CSV files. In this blog post, I will show you how to export and import a custom object array to a CSV file with PowerShell, using different code examples and exploring all the parameters during the exporting phase.

What is a Custom Object Array?

A custom object array is an array that contains one or more custom objects. A custom object is an object that has properties and values that you define. For example, you can create a custom object that represents a person, with properties such as name, age, and occupation.

# Using New-Object# Create an array of custom objects# Create an array of custom objects# Using Select-Object# Import the CSV file and create an array of custom objects

How to Export a Custom Object Array to CSV?

To export a custom object array to a CSV file, you can use the Export-Csv cmdlet. This cmdlet converts the custom object array into a comma-separated values (CSV) file and saves it in the specified path. The CSV file can then be opened by any application that supports CSV format, such as Excel or Notepad.

The basic syntax of the Export-Csv cmdlet is:

The -InputObject parameter specifies the custom object array that you want to export. The -Path parameter specifies the full or relative path of the CSV file that you want to create or overwrite.

Here are some examples of using the Export-Csv cmdlet:

# Export the $people array to a CSV file named people.csv in the current directory# Export the $people array to a CSV file named people.csv in the C:\temp directory# Export the $people array to a CSV file named people.csv in the current directory, without writing the type information header# Export the $people array to a CSV file named people.csv in the current directory, using a semicolon (;) as the delimiter instead of a comma (,)# Export the $people array to a CSV file named people.csv in the current directory, using UTF-8 encoding instead of ASCII encoding# Export only the Name and Occupation properties of the $people array to a CSV file named people.csv in the current directory

Conclusion

In this blog post, I have shown you how to export and import a custom object array to a CSV file with PowerShell, using different code examples and exploring all the parameters during the exporting phase. I hope you have learned something useful and enjoyed reading this post.

Данный скрипт поможет пересохранить файлы Excel в csv. Может быть полезно перед отправкой прайсов на хостинг для дальнейшей обработки

Представим, что у нас есть директория с файлами “\\server\Quad Solutions\hosting\”. Наша задача – найти файлы, имя которых начинается с xlsxtocsv_ и сохранить их в формате csv. Также для проверки работы будем сохранять оригинальный файл.

Например, на входе файл xlsxtocsv_test.xlsx, на выходе получаем два файла test.csv и test_orig.xlsx

Конвертировать файлы xlsx в csv при помощи компонента DCOM Excel.Application

Distributed Component Object Model (DCOM) – программная архитектура, разработанная компанией Microsoft для распределения приложений между несколькими компьютерами в сети. Программный компонент на одной из машин может использовать DCOM для передачи сообщения (его называют удаленным вызовом процедуры) к компоненту на другой машине. DCOM автоматически устанавливает соединение, передает сообщение и возвращает ответ удаленного компонента.

Недостатки работы с DCOM Excel.Application:

Среди недостатков использования DCOM Excel.Application можно отметить сложности в настройке самого компонента.  

Конвертировать файлы xlsx в csv при помощи модуля ImportExcel

Модуль ImportExcel позволяет автоматизировать работу с Excel с помощью PowerShell без установки Microsoft Office Excel.

Установка модуля ImportExcel

– для всех пользователей системы:

Install-Module ImportExcel -Scope AllUsers

– или для текущего пользователя

Install-Module ImportExcel -Scope CurrentUser

Вариант обработки файла со множеством рабочих листов

• 359

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В операционной системе Windows, как и в других операционных системах, интерактивные (набираемые с клавиатуры и сразу же выполняемые) команды выполняются с помощью так называемого командного интерпретатора, иначе называемого командным процессором или оболочкой командной строки (command shell).

• 410

Снова возвращаемся к migrate. Довольно удобный фреймворк для импорта данных в Друпал. Один из распространенных форматов источника для импорта – CSV. Поддерживается migrate из коробки. Описание и примеры работы с классом MigrateSourceCSV можно найти на drupal.org.

• 103

Иногда необходимо вывести в одном документе не только символы стандартной латиницы и своего национального алфавита. Например, для того, чтобы сослаться на название немецкого, французского или чешского источника, либо привести цитату на греческом языке (кстати, огромное множество символов просто отсутствует на клавиатуре).

• 104

Полный список команд можно вывести набрав HELP в командной строке.

• 1165

В общем, проблема старая и известная. Правда не на всех рейсурсах заметная. При использовании модуля Metatag, на форму редактирования сущностей добавляется вкладка для индивидуального изменения метатегов. И на ней используется браузер токенов.

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