How to open HDA files
Did your computer fail to open a HDA file? We explain what HDA files are and recommend software that we know can open or convert your HDA files.
What is a HDA file?
The HDA file extension indicates to your device which app can open the file. However, different programs may use the HDA file type for different types of data.
While we do not yet describe the HDA file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.
We are continually working on adding more file type descriptions to the site, so if you have information about HDA files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!
Update info Upload example file
Various HDA openers
These apps are known to open certain types of HDA files. Since many different programs may use HDA files for different purposes, you may need to try a few of the apps to open your specific HDA file.
 | Cadcity | User submitted |
 | Album Digital | User submitted |
 | Microsoft Office | User submitted |
 | HMIWeb | User submitted |
 | HUDRESPA Settlement Statement | User submitted |
| CJA Billing Software Application | User submitted |
| ASHRAE Duct Fitting Database | User submitted |
| Hendrix | User submitted |
| DesignAssistant | User submitted |
Try a universal file viewer
Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.