File extension .X3F
Full Name | Developer | Category |
---|---|---|
Sigma Camera RAW Picture Format | SIGMA | Camera Raw Files |
The X3F ( .X3F) file is a proprietary image file format developed specifically for the SIGMA cameras and used to store Camera RAW data. X3F files contain all aspects of the digital photo captured by the camera, including EXIF meta data, original bitmap data, as well as other details regarding the photographic conditions. X3F files are highly efficient in their use of storage space, and most photos are stored in less than 1MB on disk.
X3F can be processed or paired with a specific image file in numerous programs. Foveon X3F Developer is a utility made specifically for the purpose of displaying and manipulating X3F files. Additionally, both Adobe Photoshop and Camera Raw are able to read and manipulate X3F image files when configured properly for their use. It is important to note that Adobe does not consider X3F to be a standard Camera RAW file format and may not list it as an available file type. Instead, the appropriate process must be used to add it as an accepted type.
Similar File Types
Additional Camera RAW File types include: .NEF, .CR2, .DNG, .ARW, .ERF
Programs for WINDOWS system
Programs for MAC system
Programs for LINUX system
After installing the required software, the operating system will usually automatically associate an unknown file type (in this case .X3F) with the new application. If this does not happen, we can help the system a bit by selecting the software for it, which it should always use to open files with the .X3F extension.
When choosing the software we can select the system to use this software every time.
Remember!
Using it for the first time it is good to check whether the .X3F file opened in the application can be read by us and opens in a way that allows us to use it. If everything is in order, select this option the next time you open a file with the .X3F extension. However, if the file has not opened correctly, we have to look for a different software, with which we can open files with the .X3F extension. Select a different software from our list and install it on your computer. After the software is installed, repeat inspection openings of a .X3F file. Sometimes you have to repeat the operation several times.
Other instructions
If none of the programs listed by us to work with the .X3F file has not meet your expectations, you can try searching other websites. But remember to avoid downloading programs "that can open any file". These applications not only have very limited functionality, but may also expose you to expense tens of dollars when purchasing a license.
In the vast majority of cases you will find the program dedicated to support the .X3F file, or any other file format. In addition, there is a chance that it will be a free program, and its functionality (concerning the .X3F file) will be extended to the maximum.
It is also good to check
- if the .X3F file has no errors
- or if it has been copied (or downloaded by the browser) thoroughly
Author’s guidelines

Mr B. Adam
Author of the guidelines / Founder of FileExtension.info
New technologies enthusiast, helping to solve problems with the files.
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