Hello Rich.

I have no issues creating a table from that Spreadsheet:

The last line you have in it, though, contains some calculations and it will not be shown correctly in wpDataTables, so I would recommend removing it.

I can't say why you're not able to create the table with this source until I take a look, so please provide me a temporary WP-admin (administrator) user for your site where this happens, so we could log in and take a look ‘from the inside’ as that’s the most efficient way to see and resolve the issue. 

We do not interfere with any data or anything else except for the plugin (in case that’s a production version of the site), and of course, we do not provide login data to third parties. 

You can write credentials here just check PRIVATE Reply so nobody can see them except us.

Thanks, Rich.

I was unable to find out what's causing this on your website. Is this a production website?

Would you be able to provide me with FTP access credentials, so our developers can debug it, and see what error it returns? If you can provide us with FTP credentials, do we have your permission to debug it?

Remember to enable the Private response again.

Hello Rich

Thanks for the credentials! I forwarded the ticket to one of our developers, and as soon as I hear from him, I will let you know.