I am trying to use a form that will allow me to select between three
different options of events:

Opening a single csv file, or
Opening multiple csv files from different locations, or
Open all csv files from multiple locations.

Then....I need to modify each file, one at a time,

Then...close each file as an excel file (preferably in the same location as
the csv file).
(Ultimately, I could move all the files into one folder as a temporary
work-around, but this wouldn't be my preference).

I am not sure how to code the later two options. Any help would be greatly
appreciated.

Mike S.