MOS File Extension
Leaf Camera RAW Format
- File Type mos
- Developer Leaf Imaging
- Popularity
- Application Adobe Photoshop
- Category Camera RAW Files
- Format Binary
What is a MOS file?
The MOS extension is related to Leaf Camera RAW Format and is classified in the Camera RAW Files category, which contains 51 files.
MOS files are supported by Mac OS, Windows and Linux. To view a MOS file, you can choose from 11 programs such as Adobe Photoshop, PhotoScape X and ACDSee Photo Manager.
Programs that support MOS files
How to open a MOS file?
If you cannot open a MOS file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.
Adobe Photoshop, PhotoScape X and ACDSee Photo Manager stand out as the preferred programs to manage MOS files effectively. To get the latest version of Adobe Photoshop, open the Adobe website where a universal installer for all operating systems is available.
After setup, the operating system should recognize MOS files and link them with Adobe Photoshop.
Set Adobe Photoshop as the default MOS program
Change Default Program on Mac
- Right click or Control + left click on the desired MOS file;
- Choose "Open in Application" and click "Other";
- Scroll down to the bottom of the window, and there you will find the "Enable" menu. The default selection is "Recommended Programs";
- Choose "All Programs" within this menu and locate Adobe Photoshop. Check the box next to "Always open in app" to set it as the default program.
Set default programs for Windows
- Start by right-clicking on your MOS file, then select the "Open with" option and choose "Choose another app" from the menu that appears;
- In the pop-up window, select the Adobe Photoshop application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening MOS files.
Convert files to and from MOS
Be aware that converting a MOS file may reduce some features, but you can usually revert it to the original format.
Offline conversion tools, like Adobe Photoshop and darktable, provide reliable and high-quality conversion of MOS files.
Converting Files to MOS Format
Solve problems with MOS files
MOS files can sometimes be tricky, but minor software adjustments usually resolve the issues. Refer to the tips below for guidance.
What are the ways to check if my MOS file is damaged?
MOS camera raw files that have become corrupted may display one or more of the following symptoms:
- When opening the file, errors occur or the inability to access its contents;
- The file exhibits poor performance during editing operations in Adobe Photoshop;
- Adobe Photoshop or other programs stop responding or crash when trying to handle the file;
- Unexplained MOS file size inflation;
- Actions performed on the file result in the appearance of error notifications;
Why does Adobe Photoshop quit or crash unexpectedly?
Insufficient updates for Adobe products can cause Adobe Photoshop to crash. Be sure to regularly install the latest software updates.
Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.
What methods can be used to repair a damaged MOS file?
Use a recovery program to open the damaged MOS file, and in the menu, click "Repair" to start the repair operation. Allow the recovery process to complete, which will automatically repair the damaged camera raw files.
How to edit a MOS file?
To make changes to MOS files, you need specialized software that allows both opening and editing the camera raw files. Online MOS editors offer fewer capabilities than applications optimized for Leaf Camera RAW Format.
Best MOS Editor Software in 2026
Based on your described criteria, here is a list of available MOS editors.
| MOS Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Adobe Photoshop | Adobe | Windows, Mac OS | 4.9 out of 5 (47 reviews) |