Some RAR files are encrypted. Ensure you have the password from the source where you downloaded the file.
Do not try to extract each part individually. You only need to extract the first part. 23.5.1.724.X64.part1.rar
The standard tool for .rar files (highly recommended for multi-part archives). Some RAR files are encrypted
If you have downloaded a file named 23.5.1.724.X64.part1.rar (and likely accompanying part2 , part3 , etc., files), you are dealing with a . 23.5.1.724.X64.part1.rar
Choose "Extract Here" or "Extract to [Folder Name]". Using 7-Zip: Select "7-Zip" -> "Extract Here".