I am trying to figure out how to add a custom file type to be recognised by Netbeans.

I am editing .tpl files and I would like them to be recognised as PHP/HTML files.

1.Open preferences.
2.Select Miscellaneous tab.
3.Select Files sub-tab thing.
4.Click on New file extension and enter tpl.
5.Select the mime type.
6.Click ok. Done!