Do not change the file names (e.g., part1 , part2 ), as this breaks the automatic sequencing.
To combine, or "put together," a multipart .part1.rar file set, you need to extract the first part while keeping all subsequent parts ( .part2.rar , .part3.rar , etc.) in the same folder. The extraction software will automatically treat them as a single file. Steps to Extract Multi-Part RAR Files Pert 1 rar
Ensure you have filename.part1.rar , filename.part2.rar , etc., in the same directory. Use 7-Zip or WinRAR: Right-click only on the Part 1 file. Do not change the file names (e