Ss-isa-012_s.7z.002 -

: The filenames must be identical except for the numeric extension at the end. Steps to Reconstruct the File

If you only have part .002 and are missing .001 , you will be unable to open or extract the data, as the archive's header information is stored in the first volume. SS-Isa-012_s.7z.002

: You need every part of the sequence (e.g., .001 , .002 , .003 , etc.). : The filenames must be identical except for