How to import the sell priceunit and itemid from Excel


when i import from excel file I am getting empty value for itemid and zero for sell price unit. row = 2,

itemnumber = cells.item(row,2).value().bStr();

SellPriceunit = cells.item(row, 14).value().bstr();

please someone suggest me to get the correct value i have changed the data type to real.but Is there is any function to get the real value from excel.