There're a few reasons for NULLs to be returned. Check http://search.msdn.microsoft.com/search/Default.aspx?brand=msdn&query=excel+odbc+null&refinement=108&lang=en-us

>I have written a program to import data from excel file to my database via ODBC for excel.. I faced problem that, data imported could be vary. Sometime, certain field imported is NULL even though that is value in the cell. However, sometime it just working fine.
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>Anyway to solve this?>
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>Thank you