You must always initiate the extraction by right-clicking on file23.part1.rar . Use the Right Tools:
Many RAR archives are encrypted. You will be prompted for a password once you start the extraction of the first part. Are you having trouble extracting this specific file, or file23.part2.rar
If you are missing a part, you'll see a "CRC failed" or "Unexpected end of archive" error. You must always initiate the extraction by right-clicking
.rar is a proprietary compression format created by WinRAR. It is known for high compression ratios and the ability to "span" volumes across multiple files. How to Open It file23.part2.rar