You cannot "open" this file by itself. To access the contents, you need the complete set:
The extension .7z.002 indicates this is the of a multi-volume archive created by 7-Zip . Large files are often split into smaller chunks (e.g., .001, .002, .003) to make them easier to upload, download, or store on formatted drives with file size limits. 2. How to Open It SS-JulSS-013_s.7z.002
If extraction fails, one of the volumes might be corrupted. Many uploaders provide a .sfv or .md5 file to verify that every part is intact. You cannot "open" this file by itself