LZMA File Extension
LZMA Compressed Format
- File Type lzma
- Popularity
- Application 7-zip
- Category Compressed Files
- Format Binary
What is a LZMA file?
The LZMA file extension is linked to LZMA Compressed Format and belongs to the Compressed Files category, which includes 820 files.
LZMA files are supported by Windows. If you need to extract a LZMA file, you can use one of 2 programs, such as 7-zip and PeaZip.
How to open a LZMA file?
If you’re having difficulty opening a LZMA file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.
The most popular programs for working with LZMA files are 7-zip and PeaZip. To install the latest version of 7-zip on your computer, visit the Pavlov website where you can download the version available for all operating systems.
Once installed, 7-zip will be set as the default program, and LZMA files will open automatically.
Make 7-zip the default LZMA viewer
Changing the default program in Windows
- Right-click your LZMA file, then navigate to the "Open With" option and click "Choose Another Application" to continue;
- Inside the popup window, scroll through the list of applications and specifically choose 7-zip as the application to associate with your LZMA file;
- Check the "Always use this app" checkbox and click "OK".
Change the default app to open files on Mac
- Right click or use Control + Left Click on the desired LZMA file to access a dropdown menu of actions;
- Select "Open in application" and click "Other";
- At the bottom of the window, find the "Enable" menu, where "Recommended Programs" is already selected by default;
- Within this menu, select "All Programs" and then locate 7-zip. Check the box next to "Always open in app" to set it as the default program.
How to edit a LZMA file?
To edit LZMA files, you need to install specialized software that allows you not only to open but also to modify compressed files. Online LZMA editors usually provide fewer features than software created specifically for LZMA Compressed Format.
Best LZMA editors in 2026
Considering the mentioned criteria, we have compiled a list of LZMA editors that may suit your needs.
| LZMA Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| 7-zip | Pavlov | Windows | 4.8 out of 5 (39 reviews) |
Finding answers to LZMA file problems
Certain problems with LZMA files can be conveniently fixed with small software tweaks. Here are some helpful tips to address them.
What are the telltale signs of a corrupt LZMA file?
Corrupted LZMA compressed files may have one or more of the following symptoms:
- Unexplained increase in LZMA file size;
- File hangs or crashes in 7-zip or other programs;
- The file does not open or opens with errors;
- While working with the file, error messages appear;
- Poor performance when editing a file in 7-zip;
Why does 7-zip crash?
7-zip crashes can occur due to outdated software versions. To mitigate this, install the latest updates for Pavlov products.
A computer restart is often the key to solving numerous common problems. That’s why, it is recommended to restart the computer before making any changes to the software settings.
How to repair a corrupted LZMA file?
Open the damaged LZMA file with a recovery program, and then select the "Repair" menu item to start the repair process. Then wait for the recovery process to complete, which allows you to automatically repair corrupted compressed files.