Frequently Asked Questions about GuildPortal Hosting
Excel uses its specific HTML tags when creating HTML. Soe of these tags are not supported by the browsers at this point. When you paste the HTML in the editor, the browser (not the editor) strips some of Excel's native formatting and pastes the content int he content area. The HTML stripped includes these Excel-specific tags, hence the problem.
The editor is not modifying the content in any way, as it uses the browser's own paste mechanism.
The gnomes are saving your changes...