How to open .TAC file extension?

If you cannot open a new file that has been saved in the .TAC format you need to download the appropriate software. The manufacturer of .TAC files is ActiCalc; .TAC files belong to the Data Files category. After downloading the application from the list available on our website just run an unknown file, and as the default set the newly installed application supporting the .TAC files. Activities performed in the order described should solve the problems with all the files in the .TAC format.

• What is .TAC file?
• How to open .TAC file?
• What is .TAC file?