Retrieve Excel sheet by SQL

Thank you at first.
Actually my expectation is to grep the pivot table cache and import it to SQL table.
That's what I try to achieve.
But awaiting .....

You can set up an ODBC data connection to an excel spreadsheet. This will essentially treat excel as a database, each worksheet becoming a table.  Then you can connect to the table using c# and sql. There are a few limitations though. You won't be able to create stored procedures, or do outer joins. There are probably others too but those are the most frusterating ones I have run into.