Always ensure the file came from a trusted source . If you did not expect this file, do not open it. How to Safely Inspect "FILE701.7z"
A file named is a compressed archive created using the 7-Zip utility . The ".7z" extension indicates it is a container for one or more files that have been shrunken to save space or group related data together. Critical Security Context
Recent critical flaws (like those identified by NIST ) have allowed attackers to execute code during the extraction process.