Tcl is a programming language recognized by GitHub Linguist and used with .tcl, .adp, .sdc.
Quick facts
What is Tcl
Tcl is a programming language recognized by GitHub Linguist and used with .tcl, .adp, .sdc.
GitHub Linguist classifies Tcl as a programming language, typically using extensions such as .tcl, .adp, .sdc, .tcl.in, .tm, .xdc.
File extensions:
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Frequently asked questions
Tcl is a programming language recognized by GitHub Linguist and used with .tcl, .adp, .sdc.
Common extensions include .tcl, .adp, .sdc, .tcl.in, .tm.
Sources & standards
Updated 2026-08-18
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