I think you may be confused about what popped up. It isn't just a message, that should be the editor program.
After Launch Editor, there should be 2 windows open now, one is the Hero Lab program, and under that "File" menu there are the options you listed, having to do with portfolios.
The other window (the one with the message you are reading saying click on New Data File) should also have 4 menues at the top "file" "view" "tools" and "help". Under this file menu you should see Data File options.
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