: Standard Windows or macOS tools often cannot open RAR files natively. You will need a third-party utility like WinRAR , 7-Zip , or PeaZip .

: Right-click only the first part ( part1.rar ) and select "Extract Here" or "Extract to [Folder Name]". The software will automatically find the remaining parts and merge them into the final file. Safety Precautions

: Ensure you are downloading from a reputable site. "P2I FMS" specifically may refer to specialized financial or management systems; ensure you have the appropriate license to use such software. How to merge .part files using WinRar