A daily updated filename extension database!

TAC file extension

The table below provides useful information about the .tac file extension. It answers questions such as:

  • What is the .tac file?
  • What program do I need to open a .tac file?
  • How can the .tac file be opened, edited or printed?
  • How can I convert .tac files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ ActiCalc Data

TAC file is an ActiCalc Data. ActiCalc is an easy-to-use general-purpose desktop calculator.
TAC format description not yet available
Category: Data files
Application: ActiCalc
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
TAC aliases:
TAC related links:
TAC related extensions:

Other types of files may also use the .tac file extension.

🚫 The .tac file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

ac, atc, fac, gac, hac, rac, ta, tad, taf, tas, tav, tax, tc, tca, tqc

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

AC3D Model
Autodesk AutoCAD Tool Catalog
AceText Collection File
AttacheCase Encrypted File
Intuit TurboTax Data
ADRIFT Text Adventure File
Helma Actions Script
Racter Conversation Data
Venue Race Application Race Data
UltraEdit Autorecovery Data

🔴 Can't open a .tac file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .tac file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .tac file extension, write to us!

🔴 Rate our TAC page

Please help us by rating our TAC page on a 5-star rating system below. (1 star is poor, 5 star is excellent)

3 of 5 stars (21 votes)
Thanks for voting!
Invalid vote.
Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
This page is available in the following languages: Český Deutsch English Español Suomi Français Magyar Italiano 日本語 Nederlands Norsk Português Român Русский Svensk 中文