X11 file extension

Bitmap image (X Windows system window dump)

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A .X11 file is known as a Bitmap image (X Windows system window dump).

This file extension was added to our database by a visitor to this site, but no further information was provided. We have yet to investigate the X11 file extension any further, or there was simply not enough information available at the time to report accurately on this format.

However, it is possible that other file formats exist that use the X11 extension, so please let us know if you do not think this extension matches the file format you are looking for.