A TSV spreadsheet. Colorado allows to visualize and edit CSV and TSV files. It is able to import a file specifying the delimiter character, but the program will infer the format by itself in the 90% of cases.
Concepts:
In order for Colorado to work correctly, it will need dotnet and Gtk installed.
Technologies:
Then, go to the Colorado's releases section and grab the Colorado.dll file.
Just open a terminal and type:
$ dotnet Colorado.dll
Uses the GtkUtil project, already included.
This project follows the conventions of any C# solution. Feel free to use your editor of choice.