How to open a file with .TAC extension?

File Type : JSim Time Activity Curve File (University of Washington)
Compatible with (Win10, Win8, Win7, Vista and WinXP)

You'll need a new app to open this .TAC file

Searching for the right program to open .TAC files?

"You'll need a new app to open this file" is probably the most common error faced by millions of Windows users every day. This is either because the program required to open a file is not available on your system or there may be other issues.

We recommend that you run a free scan to check for missing drivers.


What is .TAC file extension?

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.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.

Software that can be used to open TACfiles:

  • ActiCalc