Export Data to Excel in PHP

Hello, the phpxlxsgenerator.php has syntax errors when I downloaded it. How can I fix it?

why different between your web exel structure list item with your exel export
in web I see the list number is, #4, #7, #18, #11, ext..
but in exel export the list is like in database.. 1,2,3, ext...

how is possible export to exel list item same in web table.

thanks my friend
best regard from Indonesia