Files with jdw file extension are related to the BlackBerry JDE (Java Development Environment).
Software that open jdw file
JDW file extension - BlackBerry JDE data
What is jdw file? How to open jdw files?
File type specification:
The jdw file extension is associated with the BlackBerry JDE, an integrated development environment that allows users to create applications for BlackBerry phones.
The jdw file stores some kind of data used by JDE for BlackBerry.
The default software associated to open jdw file:
BlackBerry Java Development Environment 
Company or developer:
BlackBerry (Research In Motion Limited)
The BlackBerry Java Development Environment (BlackBerry JDE) is a fully integrated development environment and simulation tool for building Java Platform, Micro Edition (Java® ME) applications for Java® based BlackBerry smartphones.
List of recommended software applications associated to the .jdw 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 jdw file, edit jdw file, convert jdw file, view jdw file, play jdw file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with jdw file - BlackBerry JDE data
Click on the software link for more information about BlackBerry Java Development Environment. BlackBerry Java Development Environment uses jdw 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.).
