Files with sub file extension might also be found as component packages from IBM Rational Rose platform.
SUB file extension - IBM Rational Rose component package
What is sub file? How to open sub files?
File type specification:
The sub file extension is also used for component packages in IBM Rational Rose software.
The IBM Rational Rose platform is used to integrate legacy integrated development environments or languages.
This sub file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
The default software associated to open sub file:
Rational Rose Developer for Java
Company or developer:
IBM
IBM Rational Rose Developer for Java is classic Universal Modeling Language (UML).
List of recommended software applications associated to the .sub 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 sub file, edit sub file, convert sub file, view sub file, play sub file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with sub file - IBM Rational Rose component package
Click on the software link for more information about Rational Rose Developer for Java. Rational Rose Developer for Java uses sub 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.).