: Use the 7-Zip File Manager to "Test" the archive or view its properties (CRC-32, SHA-256) to see if it matches known databases.
However, since it uses the , here is a deep look into the technical properties and potential risks associated with such a file. 1. Technical Composition of the 7z Format
: It supports AES-256 encryption for both the file data and the archive headers (filenames).