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Files with the extension .cal are known as "SuperCalc 4/5 Spreadsheet".

This file format was added to our database by a visitor to this site, but no additional information was provided.

We have yet to investigate the cal file extension any further, or there was simply not enough information available at the time to report accurately on the format. If you know how to open cal files or even how to convert or edit them, please use the form below.

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