.HDA File

File extension hda is mainly associated with HotDocs, an award-winning software application that significantly reduces the time spent generating customized documents, such as contracts, sales proposals, government and court forms, legal documents, loan applications, and medical forms, developed by HotDocs Limited.

A .hda file contains auto-assemble template for document saved in HotDocs.

Files with hda suffix are in most cases templates for making new documents in the HotDocs program. It is used to quickly create various contracts, forms, legal documents etc. based on predefined settings.

How to open:

Use HotDocs to open and work with the .hda files

How to convert:

Some sort of document export is perhaps possible using HotDocs, but no 3rd party converter seems to support .hda files.