Convert CSV to Excel file in PHP by EasyXLS library! XLS, XLSX, XLSM, XLSB in PHP.

https://www.easyxls.com/manual/tutorials/php/convert-csv-to-excel.html

Set summary information properties, document summary information properties, custom properties for Excel file in PHP.

https://www.easyxls.com/manual/tutorials/php/document-summary-information.html

Export data to XML Spreadsheet file in PHP using EasyXLS library! Spreadsheets in PHP.

https://www.easyxls.com/manual/tutorials/php/export-data-to-xml-file.html

Export data to HTML file in PHP using EasyXLS library! Spreadsheets in PHP.
https://www.easyxls.com/manual/tutorials/php/export-data-to-html-file.html