GDT File Type

- The quick facts

What are GDT files and how to open them

Are you having problems opening a GDT file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a GDT file?

GDT files have multiple uses, and Genbox Family History dictionary is one of them.

Genbox Family History dictionary

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open GDT files

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

While we have not verified the apps ourselves yet, our users have suggested 10 different GDT openers which you will find listed below.

Last updated: July 13, 2020

More file formats using the GDT extension

Through our research of GDT files, we know that the following formats exist. However, we have not yet analyzed them in detail, and we would love to hear from you if you have information about either of them.

gretl Data

Various apps that use files with this extension

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