.TAC File Extension

There is only one file type that uses the .TAC extension:

ActiCalc Data File

ActiCalc Data File

File created by ActiCalc, an advanced desktop calculator for Windows 98, 2000, and XP; saves a visual tape that stores a history of calculations; allows the history to be updated and imported into Microsoft Excel spreadsheets.

NOTE: ActiCalc is not supported on Windows Vista or later. The software has been discontinued.

Software's name License Platforms
ActiCalc ActiCalc Free Trial Windows

Updated: February 25, 2013

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