How to open FTL files

Did your computer fail to open a FTL file? We explain what FTL files are and recommend software that we know can open or convert your files.

What is a FTL file?

The FTL file extension indicates to your device which app can open the file. However, different programs may use the FTL file type for different types of data.

We are aware of 2 different uses of the FTL extension, which you can read more about below.

Family Tree Legends data

Through our analysis of FTL files, we know that one use of the format is Family Tree Legends data. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

Faster Than Light mod

Through our analysis of FTL files, we know that one use of the format is Faster Than Light mod. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

Software that will open, convert or fix FTL files

These apps are known to open certain types of FTL files. Since many different programs may use FTL files for different purposes, you may need to try a few of the apps to open your specific FTL file.

Family Tree LegendsFamily Tree LegendsUser submitted
Family Tree Legends - Starter EditionFamily Tree Legends - Starter EditionUser submitted
fuzzyTECHfuzzyTECHUser submitted
FuelTech DataloggerFuelTech DataloggerUser submitted
We have not verified any programs that we know for certain can work with FTL-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with FTL-files. If you know one, please use the Suggest link below and tell us about it!