.x3f file: how to open it on Windows
28 Windows apps register the .x3f extension. Install one of them to open the file with a double-click.
About the format
- Format
- Sigma X3F raw image
- Abbreviation
- X3F · X3 Foveon
- MIME type
- image/x-sigma-x3f
- PRONOM identifier
- fmt/661
Format data: freedesktop.org shared-mime-info and PRONOM (The National Archives, UK).
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ImageGlassA lightweight, versatile image viewer
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JPEGViewFork of JPEGView by David Kleiner - fast and highly configurable viewer/editor for images with a minimal GUI. Basic on-the-fly image processing is provided.
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PicView100% free and open source picture viewer
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XnView MPProfessional Image Viewer & Photo Management
- GIMP
GIMP is an acronym for GNU Image Manipulation Program. It is a freely distributed program for such tasks as photo retouching, image composition and image authoring.
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SageThumbsA powerful shell extension allowing to preview enormous amount of image formats directly in Windows Explorer.
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ImageGlass (MSI)A lightweight, versatile image viewer
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nomacs - Image Lounge (Beta)nomacs is a free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images.
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qViewAn image viewer designed with minimalism and usability in mind.
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nomacs - Image Loungenomacs is a free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images.
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JarkViewerA simple image viewer.
- WPS Office
Complete office suite with PDF editor
- ACDSee Free
ACDSee Free is a fast and powerful file browser, ideal for viewing RAW images, as well as searching and sorting your media libraries.
- Affinity
Award-winning integrated graphic design, photo-editing and publishing solution.
- PicPick
All-in-one design tool for everyone
- ACDSee Photo Studio Ultimate 2026
Navigate Your Creative Path and Digital Assets with AI-Powered Precision
- ACDSee Photo Studio Home 2026
ACDSee Photo Studio Home 2026 equips you with the tools to master your extensive photo collection.
- ACDSee Photo Studio Professional 2026
ACDSee Photo Studio Professional supplies you with a resourceful toolkit that blends cutting-edge, locally powered Artificial Intelligence (AI) with legendary digital asset management and sophisticated RAW image editing.
- XnView
Best Photo Viewer, Image Resizer & Batch Converter for Windows.
- WPS Office
Complete office suite with PDF editor
- 爱奇艺万能播放
Super Powerful Video Player
- JRiver Media Center
JRiver Media Center - The Most Comprehensive Media Software
- ACDSee Gemstone Photo Editor 15
ACDSee Gemstone Photo Editor 15 is your launchpad for limitless creativity, built to fuel every graphic design and photo editing journey. Engineered for both precision and ease, Gemstone gives you the freedom to explore new creative frontiers.
- BandiView
A New Standard for Image Viewers
- Hetman Photo Recovery
Photo Recovery™ recovers digital pictures from all types of storage media. Undelete photos from hard disks, recover from USB drives, or restore from formatted, corrupted or inaccessible memory cards – it can do all this, and more.
- Movavi Photo Editor
Create awesome photos easily
- Movavi Picverse
Quickly edit and manage images
- PicPick
All-in-one design tool for everyone
Related guide: Change the default app for a file type in Windows