Particularly in a business context, I find that spreadsheets often need a bunch of supporting data that exists outside of the main tabular content: headings, introduction paragraphs, legends, etc.

I would like a way to visually combine that with the tabular data while keeping the too distinct in the underling format such that:

- Constraints (e.g. type or format constraints) could be applied to the tabular data - The non-tabular data is free-form word processor style

It would also be be useful to be able to combine multiple tables with the same visual page.