: Other tools like WinRAR or PeaZip can also handle multi-part 7z files, provided the .001 extension is recognized.
: Right-click the .001 file and select "Extract Here" or "Extract to [Folder Name]." The software automatically detects the subsequent parts and merges them. UH.7z.001
: The underlying format (7z) supports high compression ratios and strong AES-256 encryption . If the archive is password-protected, the .001 file contains the initial data required by the extraction software to begin the decryption process. How to Open It : Other tools like WinRAR or PeaZip can