If WinRAR or 7-Zip says "Checksum error," you need the Recovery Record if the creator included one. Open the file in WinRAR and press Alt+R to attempt a repair. Could you clarify: Are you getting an error message when trying to open it?
These are usually uploaded alongside the .rar files by the original poster. Check the same source (forum, Usenet group, or cloud drive) where you found the RAR. S2ckb0yDODI2GB.part02.rar
In some sharing communities, a "paper" refers to a text file or image (often called a "proof" or "nfo") that contains: The for the RAR. The source of the file. If WinRAR or 7-Zip says "Checksum error," you
Based on the filename structure, this typically refers to one of the following: 📄 1. PAR2 Recovery Volume S2ckb0yDODI2GB.part02.rar