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Interleaved bitmap image
File type: Bitmap image file
An lbm file extension was used for Interleaved bitmap image format.
Found 2 different file type records with the same lbm filename suffix.
File type category:
Bitmap image file
Date updated: July 14, 2025
Record marked as obsolete and not updated for a long time.
The lbm file extension is related to old bitmap format.
The lbm files are saved using an IFF Bitmap header and IFF color map.
Its native format is a subclass of IFF called PBM, and compresses its images as bytes using the PackBits compression type, giving a ratio of up to 1:10. (This technique is somewhat unique to Deluxe Paint, and Electronic Arts have been keeping it a total "secret").
Many common bitmap viewers support this kind of file format. Try XnView or AcdSee to view lbm images.
Possibly can be exported to other formats.
Software applications that can open lbm files:
Microsoft Windows
Software applications that can edit lbm files:
Microsoft Windows
Software capable of saving lbm files:
Microsoft Windows
Programs for viewing lbm files:
Microsoft Windows
Software apps that print lbm files:
Microsoft Windows
Multiplatform
File type category:
Game file
Date updated: February 1, 2017
The lbm file extension is related to the UFO: Enemy Unknown (also known as X-COM: UFO Defense), a turn based strategic computer game for MS-DOS and Amiga computers.
The lbm file stores some kind of game data.
There is original version of UFO: Enemy Unknown running on Microsoft Windows via DOSBox available to purchase on Steam distribution service.
Software applications that handle other tasks involving lbm files:
Microsoft MS-DOS
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