Compressed files used for data backups or software distribution, as 7z is a standard format for high-ratio compression .
If you are looking to open this specific file, it is recommended to use the official 7-Zip software from the developer Igor Pavlov. Be cautious of unofficial sites like 7zip[.]com , which have been reported by Malwarebytes to distribute malware. FLELS83.7z
Knowing where you found the file or what topic the blog post covered (e.g., cybersecurity, sewing, photography) would help in locating the specific content. New microblog with TILs - Julia Evans Compressed files used for data backups or software
A blog post titled or containing the specific string does not appear in public search results or major software documentation. The name follows a pattern commonly seen in: FLELS83.7z