A file with the name "" is a compressed archive created using the 7-Zip software. The ".7z" extension indicates it is a container for one or more files that have been reduced in size to save storage space or facilitate faster sharing. Technical Overview of 7z Files
The format supports massive file sizes—theoretically up to 16 billion gigabytes. How to Open MM_13.7z MM_13.7z
Download the free, open-source 7-Zip utility . Once installed, right-click the file and select "Extract Here". A file with the name "" is a
These files can be secured with strong AES-256 encryption. open-source 7-Zip utility . Once installed