xlsx support

Essential XlsIO provides support for working with Excel 2007's xlsx format. You can perform operations like cell merging, get/set data, basic styles and range operations like copy cells, insert row/column, clear cells, etc., You can also preserve objects like autofilter and VBA macros, when xlsx file is resaved with Essential XlsIO. You can also open the xlsx files and resave it as Excel 2003 file format. It is also possible to fill more than 65000 rows.