# Additional Format Information

The `ADDOCINFO` class returns basic information about a document's format, but sometimes it can be useful to have additional information. The file `format_descriptions.tsv`, which can be found in the `bin` directory, provides a mapping between file format ID, human-readable format description, and the format's MIME type (if one exists). This file is in tab-delimited format, and the tab character will only appear as a delimiter. This information is available in the documentation (see the section Supported Formats), but the TSV file provides it in a machine-readable format.

_FT_HTML5_bannerTitle.htm