xindy is an index processor that can be used to generate book-like indexes for arbitrary document-preparation systems. This includes systems such as TeX and LaTeX, the roff-family, and SGML/XML-based systems (e.g., HTML).
This elisp package provides text based table creation and editing
feature. Emacs can edit tables embedded inside a document, just like a modern WYSIWYG word processor. The latest version generates a table HTML source from a WYSIWYG table.