When I used OLEDB, it takes only 2 - 3 seconds to read 3200 rows from an Excel Sheet. Now I changed to OpenXML format and now it takes more than 1 minute to read 3200 rows from an Excel Sheet.When I used OLEDB, it takes only 2 - 3 seconds
阅读背景：
如何以OpenXML格式阅读速度更快
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