Open the files with WinRAR, 7-Zip , or The Unarchiver .
Ensure 13185.part1.rar and all subsequent numbered parts are in the same folder. 13185.part2.rar
RAR archives typically use CRC32 or BLAKE2 checksums to ensure that data in each part has not been corrupted during transfer. Open the files with WinRAR, 7-Zip , or The Unarchiver
when trying to open it?