GDT File

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. Read more about the other uses further down the page.

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 ten different GDT openers which you will find listed below.

Last updated: July 13, 2020

All known file formats using extension .GDT

While Genbox Family History Dictionary is a popular type of GDT-file, we know of 2 different uses of the .GDT file extension. Different software may use files with the same extension for different types of data.

Gretl Data

We know that one GDT format is Gretl Data. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

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.

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 GDT file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.