File Extension

CAL File Format

CALS Compressed Bitmap

CAL is an image file format used by CALS. CAL files are compressed bitmap formatted files used for storing monochrome images. CAL files were developed in the 1980s to standardize graphics data interchange for electronic publishing for the federal government.

MIME: image/x-cals

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This was last updated in July 2010
Editorial Director Margaret Rouse

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