While highly likely to be a Virt-A-Mate package, .var extensions can occasionally refer to:
Data used in Engineering Equation Solver (EES). Riddler.Minka.1.var
Find the main installation folder for your Virt-A-Mate game. While highly likely to be a Virt-A-Mate package,
If you downloaded the file as a .zip , you must rename the extension to .var for the game to recognize it. Riddler.Minka.1.var