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TCLS file extension

The table below provides useful information about the .tcls file extension. It answers questions such as:

  • What is the .tcls file?
  • What program do I need to open a .tcls file?
  • How can the .tcls file be opened, edited or printed?
  • How can I convert .tcls files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ TestComplete Configuration File

TCLS file is a TestComplete Configuration File. TestComplete is an open test platform for creating, maintaining, and executing automated tests for desktop, Web, mobile, and client-server software applications. TCLS file contains tester-specific settings for the project suite or project (such as local paths to tested applications, local values of project and project suite variables).
Application: TestComplete
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
TCLS aliases:
TCLS related links:
TCLS related extensions:
TestComplete Log File

TestComplete Configuration Reference File

TestComplete Log Configuration File

TestComplete Project Suite File

TestComplete Events Project Data

TestComplete Project

TestComplete Test Visualizer Index

TestComplete Single User Form Data

TestComplete User Forms Project Data

TestComplete Unit Test Data

Other types of files may also use the .tcls file extension.

🚫 The .tcls file extension is often given incorrectly!

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

cls, tcl, tcs, tls

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Java Class
CLASS Group Abbreviation
TuneUp Utilities Logon Screen
Visual Basic Class Module
ArcInfo Geocoding Classification Data
TCL Script
Tahoe Server Content Source
Topocad Cross Sections

🔴 Can't open a .tcls 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .tcls file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .tcls file extension, write to us!

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