XCF
From Just Solve the File Format Problem
XCF is the native file format for GIMP (GNU Image Manipulation Program). It supports all the possible information about an image, including layers and transparency, except for undo information[1].
An XCF file may be compressed using gzip or bzip2 format. Such files usually use extension .xcf.gz, .xcfgz, .xcf.bz2, or .xcfbz2.
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See also
- GIMP Brush (.gbr)
- GIMP Animated Brush (.gih)
- GIMP Pattern (.pat)
- GIMP Palette (.gpl)
Identification
The first 9 bytes of an XCF file are the ASCII string "gimp xcf ".
Specifications
The Wikipedia article says that the reference documentation is the source code for GIMP itself.
