>> TCL file

TCL file format description

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

1 filename extension(s) found in our database.

.tcl - TCL Script

The TCL development files are related to ActiveTCL. TCL file is a TCL Script. TCL (Tool Command Language) is a scripting language created by John Ousterhout. Tcl has a very simple syntax which is applied in a consistent way.

Development files
- / -
TCL Script related extensions:
TCL Trace Output

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

Can't open a .tcl 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 .tcl file extension is often given incorrectly!

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

tsl, tl, tdl, tci, cl, tco, tck, tc1, rcl, gcl, tvl, ctl, tlc, tfl, tcp

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

OpenTL Data
Cenix True Speech LQ Audio
MathType Translator Definition Language
TCINV Inversion Control File
OpenCL Kernel

Operating systems

DataTypes.net currently supports the following operating systems:

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

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