(Knowing the context, like if it's a game, project files, or a dataset, helps) What software are you trying to use to open it?
Even if you have all parts, you generally only need to open the first part ( ...part1.rar or just the main .rar file if numbering starts later). Extract: Right-click on GF220822-SRPE-ELA.part1.rar . GF220822-SRPE-ELA.part3.rar
Ensure all parts are named correctly and reside in the same folder. (Knowing the context, like if it's a game,