Open JSPA File
The JSPA extension file works as an alias or shortcut to a Java Servlet file, which in turn uses the JSP extension.
A Java Servlet is a Java software component that extends the capabilities of a Web server. Although they are designed to respond to many types of requests, they typically implement containers to host applications on web servers and are therefore considered a server-side servlet web API.
The JSPA file is used by the WebWork web application framework for online forums and related services, and it can run one or more JSP pages when called, giving it some versatility.
Open a JSPA file
Both the JSP Servlet and the JSPA auxiliary file are not designed to be opened manually by the user, they can be executed on the side of the server that hosts them, as long as it has J2EE installed.
J2EE is a group of specifications that extends the capabilities of Java SE by providing specifications for business functions such as distributed computing and web services.