Data stands for information or information set. You may open these with Microsoft Access or Visual Foxpro.

Data file means information files.
If you are looking for a file type which keeps data sets, you should make research with using database word via Google. 
Database extensions may also be like these: .mdf, .dbf..
You can run these files with Microsoft Access or Visual Foxpro software.

What to use data

Microsoft Access, Visual Foxpro

which page related to data file

data Related Searches

You can check related links about data fileextension.