I've just encountered/learned that if I wish to "open" Test.xla file that I
earlier created -- and to add content to Sheet1, I cannot!!

When I double-click on Test.xla - up comes Book1.

Switching to the VBE - I do see the Test.xla project,
but with it currently selected I a unable to get to
the spreadsheet (App window) by clicking on the Excel
Icon (top - left).

What is someone to do if they need to do this?

Happy New Year !!