The software will combine the data from all parts and output the original content (likely a large folder or disk image).
The official tool for this format. You can download it at 7-zip.org . SS-Ele-007_v.7z.002
Based on the file naming convention "SS-Ele," this may be related to the virtual instrument library or similar high-end guitar sample libraries, which are often distributed in large, split 7z archives due to their size (often 20GB+). If this is a plugin library: The software will combine the data from all
Select > Extract Here (or "Extract to [Folder Name]"). which are often distributed in large