Files with jtpl extension are used by the Rational Application Developer. They contain some theme templates.
Software that open jtpl file
JTPL file extension - Rational Application Developer WebContent theme template file
What is jtpl file? How to open jtpl files?
File type specification:
The jtpl file extension is associated with the Rational Application Developer an integrated development environment for Microsoft Windows that is a part of Rational Software Development Platform. The .jtpl file stores WebContent theme template.
The default software associated to open jtpl file:
Rational Software Development Platform 
Company or developer:
IBM
IBM Rational Software Development Platform is open, proven, complete and modular solution comprised of a comprehensive set of tools, proven best practices and professional services.
List of software applications associated to the .jtpl 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 jtpl file, edit jtpl file, convert jtpl file, view jtpl file, play jtpl file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting jtpl files.
Software that open jtpl file - Rational Application Developer WebContent theme template file
Programs supporting the exension jtpl on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Rational Software Development Platform for open jtpl file action.
