TMAC file format description

Many people share .tmac files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .tmac file can be edited, converted or printed with. On this page, we try to provide assistance for handling .tmac files.

1 filename extension(s) found in our database.

.tmac - Troff Macros File

The TMAC development files are related to Troff. The TMAC file is a Troff Macros File. Troff is the major component of a document processing system developed by AT&T Corporation for the Unix operating system.

Development files
- / -
Troff Macros File related extensions:
Troff Table of Contents Data
Troff Data

Naturally, other applications may also use the .tmac file extension. Even harmful programs can create .tmac files. Be especially cautious with .tmac files coming from an unknown source!

Can't open a .tmac 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 can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .tmac file extension is often given incorrectly!

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

mac, tac, tma, tmc

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

ActiCalc Data
UltraEdit Macro
JSim Time Activity Curve Data
IAR System C-SPY Macro Definition Data
DCI TradeManager Catalog Archive
Minitab Macro Data

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .tmac file format, then write to us! >> TMAC file