fix reading wrong string from xml such as below <sheetData><row r="1"><c r="A1" s="1" t="s"><v>0</v></c><c r="B1" s="1" t="s"></c></row></sheetData>
fix reading wrong string from xml such as below
<sheetData><row r="1"><c r="A1" s="1" t="s"><v>0</v></c><c r="B1" s="1" t="s"></c></row></sheetData>

Luxurioust/excelize,qax-os/excelize