X3F File Extension

Programs that support X3F files

• Windows ¹⁰
• Mac OS ⁴
• Linux ²

Windows

• SIGMA Photo Pro
• Adobe Photoshop
• Zoner Photo Studio
• FastPictureViewer Pro
• Adobe Lightroom
• Adobe Photoshop Camera
• PhotoPlus
• PhotoFiltre Studio
• Adobe DNG Converter
• XnConvert

Mac OS

• Adobe Photoshop
• PhotoScape X
• Adobe Lightroom
• XnConvert

Linux

• darktable
• XnConvert

How to open a X3F file?

If you can’t open a X3F 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.

SIGMA Photo Pro, Adobe Photoshop and Zoner Photo Studio stand out as the preferred programs to manage X3F files effectively. To install the latest version of SIGMA Photo Pro on your computer, visit the Sigma website where you can download the version available for all operating systems.

After installing, your OS should instantly open X3F files with SIGMA Photo Pro.

Setting SIGMA Photo Pro as default X3F viewer

Change the default app for a file type in Mac

1. Initiate a right click or use Control + left click on the desired X3F file to open a menu where you can select various actions;
2. Choose "Open in Application" and click "Other";
3. Look towards the bottom of the window, where you will find the "Enable" menu. "Recommended programs" will be the default selection;
4. Choose "All Programs" in this menu and search for SIGMA Photo Pro. Check the box next to "Always open in app" to set it as the default option.

Set default programs for Windows

1. Take the first step by right-clicking on your X3F file. Next, select "Open With" and then choose "Choose another app" from the available options;
2. Choose SIGMA Photo Pro from the available applications listed in the pop-up window to set it as the default application to open your X3F file;
3. Be sure to check the "Always use this app" checkbox, and then click "OK" to confirm your selection.

Convert files to and from X3F

If you have trouble working with a X3F file, try converting it to DNG, ORF, RAW or similar camera raw files.

Be aware that converting a X3F file may reduce some features, but you can usually revert it to the original format.

Using offline converters like SIGMA Photo Pro, Adobe Photoshop and Zoner Photo Studio ensures high-quality conversion of X3F files to different formats.

Convert X3F to other file formats

• X3F to DNG
• X3F to RAW
• X3F to ORF

Tips and tricks to solve problems with X3F files

Problematic X3F files can usually be resolved by making small changes in your software. See the tips below to help fix common issues.

How to edit a X3F file?

To make changes to X3F files, you need specialized software that allows both opening and editing the camera raw files. Online X3F editors offer fewer capabilities than applications optimized for SIGMA X3F Camera RAW Format.

Best X3F Editor Software in 2026

Based on the specified criteria, here is a list of X3F editors that may fit your requirements.