SQL SERVER

Question

I want to import data from a spreadsheet using OPENROWSET on a production server. This is my query:

SELECT *
FROM OPENROWSET('Microsoft.Jet.OLEDB.4.0',
'Excel 8.0;Database=C:\dataSource.xls;HDR=YES',
'SELECT * FROM [Foglio1$]')

I get the following error message (mine is in italian, here is the english version):

OLE DB provider "microsoft.jet.oledb.4.0" for linked server "(null)" returned message "Unspecified error".
Msg 7303, Level 16, State 1, Line 1
Cannot initialize the data source object of OLE DB provider "microsoft.jet.oledb.4.0" for linked server "(null)".