I have a file that is in unknown file format. It has a file extension of .map but I am not sure if the file extension has been changed. The .map extension may not be accurate for the internal format of the file. This project is to identify the true file format and find a software program that is able to open the file correctly to read the contents.
I think that the contents of the file are some type of list or table that contains a large number of rows and only a few columns, possibly 90000 rows and two or three columns?
A copy of the file is attached (Open [url removed, login to view])
I also need to be able to edit the file to add new data. Whatever program is used to open the file needs to be able to edit and save the file,