SSIS import problems - imported rows returning NULLs

When importing data from an Excel workbook using SSIS, some values may be returned as NULL. This is caused by the OLEDB driver believing some columns have multiple data types. Use the IMEX flag to work around this problem.

http://support.microsoft.com/kb/189897/EN-US/
http://support.microsoft.com/default.aspx/kb/194124


change this
Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Data_200708.xls;Extended Properties="EXCEL 8.0;HDR=YES";

to

Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Data_200708.xls;Extended Properties="EXCEL 8.0;HDR=YES;IMEX=1";