Excell interfaces

[Sam]

Hi All,

I would like to know if it is possible to group three excell files with only
one worksheet inside each file into one excel file with three worksheets

so, at the begining I have
1 excel file with one Worksheet inside
another excel file with one Worksheet inside
another excel file with one Worksheet inside

and at the end I (should) have
1 excel file with three worksheets inside

If so, would you tell me which object/interfaces/method I need to use in
order to make it work ?

Big thank to your help

Samuel