If you are looking for the original post where this was shared, it is commonly found on , warez forums , or private trackers . Because these archives are interdependent, you will need all other parts (part1, part2, etc.) to successfully extract the content.
The filename appears to be a specific segment of a split-archive download, likely associated with a 1080p video release from the year 2021. Based on the naming convention: f0t2021 MULTi.1080p.R-MG.part13.rar
: This is the 13th part of a larger compressed archive. If you are looking for the original post