At its core, is a compressed archive file. The ".7z" extension indicates that it was created using 7-Zip, an open-source file archiver known for its high compression ratio. However, the prefix "Ready-vertex3" is what contains the descriptive power.
However, exercise due diligence. Scan the file with antivirus software before extraction. Verify the licensing terms. And always keep a backup of the original in a secure cloud drive. Ready-vertex3.7z