: You need to place RMAWH-r3.7-pc.part1.rar and RMAWH-r3.7-pc.part2.rar together. Tool Needed : Use a file archiver like WinRAR or 7-Zip .
Files named in this fashion ( [Name]-pc.partX.rar ) found outside of official sources are frequently used to distribute unauthorized software (repacks), modifications, or sometimes malicious content.
To help you further, could you tell me where you found this file or what you expect it to contain?