GSI File Type

- The quick facts

What are GSI files and how to open them

Are you having problems opening a GSI 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 GSI file?

A .GSI file is a GPS Tuner map slices calibration data file.

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 GSI files

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

While we have not verified the app ourselves yet, our users have suggested a single GSI opener which you will find listed below.

Last updated: March 9, 2012

Suggest another file format using extension GSI

While we know of one file format using the .GSI file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .GSI file.

Various apps that use files with this extension

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

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