Use the OST to HTML converter application to convert your OST message storage file into a set of separate HTML files. The OST to HTML Conversion application will pack generated HTML files into a ZIP archive.
MBox file format is a generic term that represents a container for collection of electronic mail messages. The messages are stored inside the container along with their attachments. Messages from an entire folder are saved in a single database file and new messages are appended to the end of the file. Numerous applications and API provide support for MBox file format such as Apple Mail and Mozilla Thunderbird. Also, OST files can be converted to other message containers and used in other applications. For example, you can use an OST to PST converter.
HTML files store formatted text with hyperlinks, images, styles, and scripts. HTML files could be viewed by web browsers and some other viewers. Email message body can also be represented as HTML text. HTML email message body is convenient for email marketing and formatted email signatures.
You can also convert Outlook Online Storage File into many other formats. Please see the list below: