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What is a PS1 file? A PS1 file is a script , or "cmdlet," used by Windows PowerShell, a Windows shell program built on Microsoft's .NET Framework. It contains a series of commands written in the PowerShell scripting language. PS1 files are similar to .BAT and .CMD files, except that they are executed in Windows PowerShell instead of the Windows CMD.EXE and COMMAND.COM programs.

More Information PS1 file open in Windows PowerShell Cmdlets can be used to automate Windows tasks. For example, a cmdlet may rename a group of files to use a new file extension. Another cmdlet may examine the Windows registry and output results to a file. Cmdlets also support aliases, pipelines , and named and positional parameters for commands.

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.PS1 File Extension

2 file types use the .ps1 file extension.

Windows PowerShell Cmdlet File

DeveloperMicrosoft
Popularity
3.9  |  50 Votes
 

NEW: Open your .PS1 file online with File Helper . View Online

What is a PS1 file?

A PS1 file is a script , or "cmdlet," used by Windows PowerShell, a Windows shell program built on Microsoft's .NET Framework. It contains a series of commands written in the PowerShell scripting language. PS1 files are similar to .BAT and .CMD files, except that they are executed in Windows PowerShell instead of the Windows CMD.EXE and COMMAND.COM programs.

More Information

PS1 file open in Windows PowerShell

Cmdlets can be used to automate Windows tasks. For example, a cmdlet may rename a group of files to use a new file extension. Another cmdlet may examine the Windows registry and output results to a file. Cmdlets also support aliases, pipelines , and named and positional parameters for commands.

How to open a PS1 file

Because a PS1 file is a plain text file, you can open and view it using any text editor, including:

On Windows, you can open and execute PS1 scripts in Windows PowerShell. However, you should be careful when executing PS1 scripts, as they might contain commands that access and alter critical Windows operating system components. Do not execute a PS1 script unless you can verify its legitimacy and source.

Programs that open PS1 files

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File Viewer Plus

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Microsoft Windows PowerShell

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Microsoft Notepad

Included with OS

Any text editor

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Apple TextEdit

Included with OS

Any text editor

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FileHelper.com

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File Viewer for Android

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Category: Executable Files

Updated: July 2, 2020

Microsoft Indexing Service Data File

DeveloperMicrosoft
Popularity
2.9  |  14 Votes
 

A PS1 file may also be a system file created by the Microsoft Windows Indexing Service feature, which creates an index of searchable file information. It is commonly created in the C:\​System Volume Information\​catalog.wci\​ directory and contains data that helps the operating system perform quicker searches.

Programs that open or reference PS1 files

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Category: System Files

Updated: May 16, 2011

FAQ

What is a PS1 file?
A PS1 file is a script, or "cmdlet," used by Windows PowerShell, a Windows shell program built on Microsoft's .NET Framework. It contains a series of commands written in the PowerShell scripting language. PS1 files are similar to .BAT and .CMD files, except that they are executed in Windows PowerShell instead of the Windows CMD.EXE and COMMAND.COM programs.
How do I open a .ps1 file?
Because a PS1 file is a plain text file, you can open and view it using any text editor, including: