The question is simple, see in the photo :
In the workbook itself, we can reference the sheet directly like this:
Synthese.Range("bla:bla")
instead of
Worksheets("Sythèse FGA").Range("bla:bla")
So I really just want to write a fonction to get an excel file by file dialogue, and then read two sheets into arrays so that I can close this workbook.
Of course I don't need to do like this, I just want to know if it's possible.