Files with dd extension are related to Everest software. They include data dictionaries.
DD file extension - Everest data dictionary
What is dd file? How to open dd files?
File type specification:
The dd file extension is associated with the Everest fully integrated business management software for Microsoft Windows. The .dd fie contains data dictionary used for internal purposes of the Everest application.
The default software associated to open dd file:
Company or developer:
Everest Software, Inc.
Everest is fully integrated business management software used to manage and track business operations online and offline - from storefront to the front- and back-office.
List of recommended software applications associated to the .dd file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open dd file, edit dd file, convert dd file, view dd file, play dd file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with dd file - Everest data dictionary
Click on the software link for more information about Everest. Everest uses dd file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).