Need for a plugin to save post/page in various formats


I have been searching high and low to find a plugin that would allow my readers to save a post or page in various file formats, like text, html, Word (doc or docx), rtf and maybe others. The best solution I have found so far is Universal Post Manager, but that plugin suffers from several serious issues, and it seems impossible to get in contact with the developer.

I wonder if development of such a plugin could be worth looking into for your developers.

Best regards,

Tore Johnny