module to create Excel spreadsheets in xlsx format

 The Excel::Writer::XLSX module is used to create an Excel file
 in the 2007+ XLSX format. The XLSX format is the Office Open XML (OOXML)
 format used by Excel 2007 and later.
 .
 This module cannot, as yet, write to an existing Excel XLSX file. The
 module uses the same interface as the Spreadsheet::WriteExcel
 module (which creates binary XLS Excel files).