The MBOX file format is widely used for email message storage. It stores several emails in a single file. Email applications that support it include Thunderbird, Opera Mail, Apple Mail, and several more. On the other hand, MHT is an archive file that is hosted online. This mixes HTML code with resource data, such as music, flash, video, images, and more. It comes in two different file extensions:.mht and.mhtml. Try BLR MBOX Converter on your computer. The program allows MBOX files to be directly converted to MHT files. Its dual mode allows one to export several MBOX files at once. Data integrity and folder hierarchy are preserved throughout the process. Using criteria like topic, to, from, and exclude folders, this program enables you to convert certain emails from an MBOX file.