Maple Help Database (.hdb) Format
HDB file format
Description
HDB is a deprecated file format for Maple help database files.
This format was replaced in Maple 18 by the Maple Help format (.help).
If you have custom help pages in an HDB file, you must migrate the help content from versions of Maple prior to 18 to the current format.
See Also
Formats
Help Databases in Maple
HelpTools
Download Help Document