All about PSM1 Files

The PSM1 file type is primarily associated with PowerShell.

PSM1	File extension: PSM1
	File type:	module

What is a PSM1 file

PSM1 files mostly belong to PowerShell by Microsoft. A PSM1 file is a reusable script module used to develop a package for PowerShell command line interpreter and task automation software. Code saved in a PSM1 file include functions, variables, and commands written in PowerShell scripting language. Unlike regular PowerShell script (PS1) files, the functions and variables defined in a script module (PSM1) can be exposed to other scripts by importing the module.

How to open PSM1 files

You need a suitable software like PowerShell to open a PSM1 file. You need a suitable software like PowerShell from Microsoft to open a PSM1 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your PSM1 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a PSM1 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online PSM1 Text Viewer

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What to Do When a .PSM1 File Fails to Open

PSM1 files can originate from different programs and aren't universally openable.

Identify the Source: These files are typically PowerShell Script Modules created by developers or IT administrators to package reusable functions.
Check the Header: Open the file in a text editor to inspect the opening lines. You might see:
- Plain text with function or CmdletBinding, implying a standard PowerShell module.
- "PK" or binary characters, suggesting an incorrectly named ZIP archive.
Use the Original Software: You usually need the original environment to run or edit them. Try Microsoft PowerShell, Visual Studio Code, or Notepad++; if unsure, ask the sender.
Use this Webpage: Drag and drop your file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for PSM1 File Extension

File classification:

Developer

Related files:

ps1, sem, msm

Mime type:

application/x-powershell, text/x-powershell

a psm1 module is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with PSM1 files

Associate the PSM1 file extension with the correct application.
Update your software that should actually open modules. Because only the current version supports the latest PSM1 file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available PowerShell update.
To make sure that your PSM1 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .PSM1 file online - secure, fast, and no downloads needed.