Hi Albert,

Thank for the your answer. :-))

I think that I give up. It is a operation that is not trasparent for the operator and it is much expensive. I have see that Visual Basic open the file with much simplicity. Because Microsoft do not think also to us!

I must to do the conversion in a style much simple for the final user.

Thank to all ! :-))

Ciao
Annibale
ROME - ITALY