Import from Excel to SQL

EXEC sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
EXEC sp_configure 'Ad Hoc Distributed Queries', 1;
GO
RECONFIGURE;
GO
INSERT INTO dbo.Reason_Mst (varReasonCode,varReasonDesc)
SELECT * FROM OPENROWSET('Microsoft.Jet.OLEDB.4.0',
                'Excel 11.0;Database=\\Dbserver\DESKTOP REDIRECT\IT\vcsit26\Desktop\OPC-Masters.xls',
                'SELECT * FROM [Reject_reason$]')

Error while importing from excel to sql server

OLE DB provider "Microsoft.Jet.OLEDB.4.0" for linked server "(null)" returned message "Could not find installable ISAM.".
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)".