![](https://en.downloadastro.com/wp-content/themes/comparison/assets/img/file-ext-error.jpg)
The MET extension is used by eMule, an online file sharing program.
The MET file contains a number of links, addresses and filename used during the file transfer process.
The MET extension is used by eMule, an online file sharing program.
The MET file contains a number of links, addresses and filename used during the file transfer process.