Since "FLELS103" is likely a custom name given by its creator, a "review" of the archive's quality or safety depends on its specific contents.
: The .7z format uses the LZMA algorithm , often providing 30–50% better compression than standard ZIP files. FLELS103.7z
: While the format itself is safe, files inside can contain malware. You should only open this archive if you trust the source from which you downloaded it. Since "FLELS103" is likely a custom name given
: If you receive a "Data Error" or "CRC Error" when trying to open it, the file may be corrupted. 7z get total size of uncompress contents? - Stack Overflow FLELS103.7z