How to open DT3 files
Did your computer fail to open a DT3 file? We explain what DT3 files are and recommend software that we know can open or convert your DT3 files.
What is a DT3 file?
The DT3 file extension indicates to your device which app can open the file. However, different programs may use the DT3 file type for different types of data.
While we do not yet describe the DT3 file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.
We are continually working on adding more file type descriptions to the site, so if you have information about DT3 files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!
Update info Upload example file
Various DT3 openers
These apps are known to open certain types of DT3 files. Since many different programs may use DT3 files for different purposes, you may need to try a few of the apps to open your specific DT3 file.
![]() | Easy D.I.Y Software ModelinV3 | User submitted |
![]() | ERDAS IMAGINE | User submitted |
![]() | MIKE Zero | User submitted |
![]() | DIMEtalk System Design | User submitted |
![]() | AiBlissV1 | User submitted |
Try a universal file viewer
Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.