A1.7z.002 -

Do you have the of this archive (like .001) saved in the same folder?

When a file or folder is too large to be uploaded to a cloud service, sent via email, or stored on a single disk, users often "split" the archive into multiple smaller segments. : The first segment (contains the header info). A1.7z.002 : The second segment (your file). A1.7z.003, .004, etc. : Subsequent segments. A1.7z.002