Can't open Exel spread*** using oledb open method in Windows XP sp2

I am writing a web application as a administrative front end to a document management system. One of the functions that I am developing is the ability to import new users into the system via an Excel spread***. The specific error code I am getting (if you want to call it specific) is 0x80004005 and the message is 'unspecified error'.
 
My connection string is
 
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + HttpContext.Current.Server.MapPath(".//" + csv_store_read) + ";Extended Properties=Exel 11.0;HDR=Yes"
 
Where HttpContext.Current.Server.MapPath(".//" + csv_store_read)  is the physical path to the file. The spread*** resides in a local folder on the users machine and then when the import the file will be copied to the web server. I've ensured that the folder on the server has the internet account user configured for full access. I also read a couple of threads that said to set up the Windows system directory to have the internet user account assigned to it as well.
 
I also have impersonate set to true in the web.config file
 
Nothing is working I keep getting this error.
 
Any help/suggestions will be GREATLY appriciated.
 
Thanks,
Bill Youngman
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