That file appears to be part of a multi-part archive for a simulation game ("Budowa" is Polish for "Construction"). Typically, this implies a game named " Construction Simulator " (likely Construction Simulator 2015 or similar).

Files named .part1.rar , .part2.rar , etc., must all be downloaded into the same folder. You only need to extract the first file ( .part1 ) using software like WinRAR or 7-Zip , and it will automatically combine all parts.

I can provide more specific instructions if I know the issue.