Drop your file to analyze it

TEC File

What are TEC files and how to open them

Are you having problems opening a TEC file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your TEC files.

What is a TEC file?

TEC files have multiple uses, and PDP-10 TECO Macro is one of them. Read more about the other uses further down the page.

PDP-10 TECO Macro

Files that contain the .tec file extension are commonly used for PDP-10 TECO macro files. These files were created for the PDP-10 mainframe computers that were manufactured by DEC.

PDP-10 stands for Programmed Data Processor Model 10. A variety of universities used these machines in their research labs and computing facilities. These computers were most popular from 1963 through 1966.

How to open TEC files

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

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

Last updated: December 22, 2023

All known file formats using extension .TEC

While PDP-10 TECO Macro is a popular type of TEC-file, we know of 3 different uses of the .TEC file extension. Different software may use files with the same extension for different types of data.

TECkit compiled mapping

The TECkit software also uses the .tec file suffix. TECkit is an acronym for Text Encoding Conversion toolkit. The TEC files that are used by this software contain a compiled version of the text mappings that are saved in the software's MAP files.

Ledit layout data

The Tanner Ledit software application also uses the .tec file format. These TEC files contain layout technology data files that are used by the Tanner Ledit program.

Various apps that use files with this extension

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

RealPlayerRealPlayerUser submitted
Hancom OfficeHancom OfficeUser submitted
GOM PlayerGOM PlayerUser submitted
Adobe PhotoshopAdobe PhotoshopUser submitted
Adobe AcrobatAdobe AcrobatUser submitted
TeemTalkTeemTalkUser submitted
HxD Hex EditorHxD Hex EditorUser submitted
Picasa Photo ViewerPicasa Photo ViewerDiscontinued
Windows Photo GalleryWindows Photo GalleryDiscontinued

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about TEC file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.