thanks, i gave a read to that but i think my problem is not mentioned there, unfortunely.
the first pic tells:
an exception occurred: the on-premises data gateway could not be reached, which could be offline
the second (the part in italian):
1) an exception occurred:
2) You may need the 64-bit version of the access database engine provider to read this file type. to download the client software visit the following web site
(but i cannot open the link)