PSM1 File Extension
Windows PowerShell Script Module Format
- File Type psm1
- Developer Microsoft
- Popularity
- Application Windows PowerShell
- Category Developer Files
- Format Text
What is a PSM1 file?
The PSM1 file extension is linked to Windows PowerShell Script Module Format and belongs to the Developer Files category, which includes 1166 files.
The Windows PowerShell Script Module Format (PSM1), created by Microsoft, is one of file format they developed, and they also built 242 programs to support them.
PSM1 files are supported by Windows, Mac OS and Linux. When working with PSM1 files, you can rely on 5 programs, including Windows PowerShell, Microsoft Visual Studio and Microsoft Windows.
Programs that support PSM1 files
How to open a PSM1 file?
If you can’t open a PSM1 file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.
The most popular programs for working with PSM1 files are Windows PowerShell, Microsoft Visual Studio and Microsoft Windows. To install the latest version of Windows PowerShell on your computer, visit the Microsoft website where you can download the version available for all operating systems.
Following installation, PSM1 files should be automatically opened with Windows PowerShell.
Set Windows PowerShell as your default PSM1 viewer
Changing the default program in Windows
- Right-click on your PSM1 file, then choose the "Open with" option and select "Choose another application" from the available options;
- From the list of applications in the pop-up window, find and select Windows PowerShell as your desired application;
- Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening PSM1 files.
Set default app to open files on Mac
- Right-click or Control + left-click on the desired PSM1 file to open a menu of available actions;
- Select "Open in application" and click "Other";
- Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
- Within this menu select "All Programs" and navigate to Windows PowerShell. Check the box next to "Always open in app" to make sure it’s the default option.
How to edit a PSM1 file?
To edit PSM1 files, you need to install specialized software that allows you not only to open but also to modify developer files. Online PSM1 editors usually provide fewer features than software created specifically for Windows PowerShell Script Module Format.
Best PSM1 editors in 2026
Taking into account the provided details, we have prepared a list of PSM1 editors that match your needs.
| PSM1 Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Microsoft Visual Studio | Microsoft | Windows, Mac OS, Linux | 4.2 out of 5 (35 reviews) |
| Windows PowerShell | Microsoft | Windows | 4.2 out of 5 (41 review) |
Solving Common PSM1 File Challenges
When issues arise with PSM1 files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.
What are the warning signs that my PSM1 file may be corrupted?
Corrupted PSM1 developer files may have one or more of the following symptoms:
- Error messages appear during the course of working with the file;
- Poor performance when editing a file in Microsoft Visual Studio;
- Attempts to open the file result in errors or failed results;
- Unexplained increase in PSM1 file size;
- The file causes Windows PowerShell or other programs to hang or crash during operation;
Why does Windows PowerShell crash?
Windows PowerShell crashes can be caused by outdated software. Keep your Microsoft products up to date by installing the latest updates.
A simple restart of your computer can often fix many common problems, which is why it is the recommended first step before making any adjustments to your software settings.
How to repair a corrupted PSM1 file?
Use a data recovery program to open the damaged PSM1 file and from the menu choose "Repair" function to start the repair process. Please be patient while the recovery process completes, which will automatically restore the damaged developer files.