Notes about the JSPF file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The JSPF file type is primarily associated with 'JSP Page Fragment' by Sun. A JSP page is a text document that contains two types of text: static data, which can be expressed in any text-based format and JSP elements, which construct dynamic content. The recommended file extension for the source file of a JSP page is .JSP (which is what most people see). The page can be composed of a top file that includes other files that contain either a complete JSP page or a fragment of a JSP page. The recommended extension for the source file of a fragment of a JSP page is .JSPF.
Detailed information for file extension JSPF:
File classification: Source Code
To change file associations press Windows Key
and then Apps and Features
> Default apps
> Choose default apps by file type
Invalid file associations could be the result of underlying issues within your Windows PC.