TCL File Type

- The quick facts

What are TCL files and how to open them

Are you having problems opening a TCL file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a TCL file?

The TCL file extension indicates to your device which app can open the file. However, different programs may use the TCL file type for different types of data.

While we do not yet describe the TCL file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.

We are continually working on adding more file type descriptions to the site, so if you have information about TCL files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!

How to open TCL files

Important: Different programs may use files with the TCL file extension for different purposes, so unless you are sure which format your TCL file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 13 different TCL openers which you will find listed below.

Various apps that use files with this extension

These apps are known to open certain types of TCL files. Remember, different programs may use TCL files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Altium DesignerAltium DesignerUser submitted
TkTkUser submitted
Altium Designer SummerAltium Designer SummerUser submitted
Altium Designer WinterAltium Designer WinterUser submitted
Aldec Active-HDLAldec Active-HDLUser submitted
Notepad++Notepad++User submitted
TWCaddie08TWCaddie08User submitted
ActiveState ActiveTclActiveState ActiveTclUser submitted
ALTIUMALTIUMUser submitted
TimeCalendarTimeCalendarUser submitted
AD13AD13User submitted
TimeCalendar LETimeCalendar LEUser submitted
ETclETclUser submitted

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.