Why do I get this message on canvas when I try to submit a eclipse project. How do I save to java format??? I need help! Im using a Mac

World Ja Ch 1 Activity 1 : Hello.java Introduction to ing in Java - G Ch 1 1 : Hello.java Please download this file by clicking on the following link. Download to your Eclipse workspace. Hello.java File Upload Google Doc Upload a file, or choose a file you've already uploaded. FileChoose File a Hello World 1 jar This file type is not allowed. Accepted fle types are java Add Another File Comments... Cancel Submit Assignment Ch1 Activity 1: Hello.java Pts Ratings Criteria