Hello!
The trick with BEx Analyzer is that you are launching Analyzer.exe, but it will only launch Excel and exit.
You need to Launch, attempt to Detach, and then Attach separately to the excel window (the process name is ""Excel"", and the window title pattern is ""*Excel*"")
There are two other gimmicks I could think of:
Using Write stages doesn't always work with the input fields. I had to use Global Mouse Click and Window Press Keys.
Interacting with the Ribbon is best done with AA mode.
I hope this helps.