Files with tec extension can mainly be found as ASCII Data files used by Tecplot software like Tecplot 360.

There are 4 other file types using
the TEC file extension!

empty icon.tec - Tanner L-edit layout technology data

empty icon.tec - PDP-10 TECO macro

empty icon.tec - Samsung phones cached image

empty icon.tec - TECkit compiled mapping file

TEC file extension - Tecplot ASCII data

What is tec file? How to open tec files?

File type specification:

Graphics file type icon Graphics file type

File extension tec is sometimes used for Tecplot ASCII Data files. Tecplot, a family of visualization software tools developed by Tecplot, Inc.

The more common and default file extension is dat, but some programs export Tecplot compatible data files with tec file extension instead. Tecplot can probably work with them if the file extension is renamed back to dat.

These files can be converted to standard binary PLT format used by TecPlot with preplot.exe program located in the /bin folder inside the program folder. They can also be loaded directly to Tecplot and exported to another format.

Tecplot tec files have the following characteristic:

  • ASCII (although TECPLOT can create and use binary data files)
  • Color is not associated with the data, but can be added during postprocessing by the TECPLOT program, or by associating variables "R", "G" and "B" with data, for instance;
  • 2D or 3D data, and can have time dependence;
  • No compression (except for the binary data format option);
  • Geometric data is stored, but the user can also store associated quantities such as pressure, temperature, or velocity.
  • Data is grouped into zones whose meaning is determined by the user. Animation is achieved by starting with each zone being a "time snapshot", and displaying one zone at a time.

Updated: November 29, 2023

The default software associated to open tec file:

Tecplot 360 icon

Tecplot 360  Microsoft Windows software

Company or developer:
Tecplot, Inc.

Tecplot 360 is numerical simulation and CFD visualization software that combines vital engineering plotting with data visualization into one application.

Help how to open:

Rename the extension from TEC to DAT and you will probably be able to load it directly to Tecplot.

How to convert:

Rename the extension from TEC to DAT and use preplot.exe bundled together with Tecplot to convert it to a binary .plt file usable in Tecplot.

Find conversions from tec file:

tec to jpeg

tec to jpg

tec to lay

tec to lpk

Find converter to tec file type:

lpk to tec

List of software applications associated to the .tec file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open tec file, edit tec file, convert tec file, view tec file, play tec file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting tec files.

Software that open tec file - Tecplot ASCII data

Programs supporting the exension tec on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Tecplot 360 for open tec file action.

Microsoft Windows:

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