: Ensure you have downloaded parts 1 through 3.
: Compare the size of part4 to part1 . Multi-part archives (except for the very last part) should usually be the exact same size. sc23971-KBOSv207.part4.rar
Are you seeing a or checksum failure when trying to open this file? : Ensure you have downloaded parts 1 through 3
: Likely a unique database ID from a site like Sim-Outhouse, Simviation, or a private flight sim repository. or a private flight sim repository.