An MFS file is most commonly an encrypted virtual file-system container created by MetFS. Rather than holding one ordinary document, it can store multiple files and folders inside a single encrypted container. Because the data is protected, an MFS file may appear unreadable when opened using an ordinary text editor,

An MFS file is most commonly an encrypted virtual file-system container created by MetFS. Rather than holding one ordinary document, it can store multiple files and folders inside a single encrypted container. Because the data is protected, an MFS file may appear unreadable when opened using an ordinary text editor,