: Right-click the .001 file specifically.
7zip file with numbers on it like 001 means that you only have a part file of the whole compressed file. Microsoft Learn Guidelines for authors
: Archives are often split into smaller chunks to meet file size limits for email attachments, cloud storage, or FAT32 drives.
: Do not rename the individual parts (like .001, .002); they must follow the exact numerical sequence for the software to recognize them as one file.