Import Excel Sheet from ASP.Net

 hi all,
i'm importing a excel file from asp.net page using oledb. the file contain some unicode charecters like &yelm; etc. the sheet have some text column, date column and integer columns.  the problem is that when i'm fetching the recods from excel sheet then its not fatching all the records.its not fetching some column's value.
this is my connection string
objConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source="+filename+"; Extended Properties=" +(char)34 + "Excel 8.0; HDR=Yes; IMEX=1" + (char)34);
 
kindly help me
 
thanks 

 
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