You can upload and share your documents online with previews; wrong downloaded documents are waste of time and space.
Scribd.com, helps you out with your problems.
• Reach millions of viewers. Scribd has the most viewers of any document sharing site.
• Or you can share your document with only those people you choose.
• Get your document ranked higher on search engines like Google.
• Free online storage with regular backups.
• Embed richly-formatted documents into any website or blog.
Supported File Types:
Microsoft Office: Word (doc, docx), Powerpoint (ppt, pptx, pps), Excel (xls, xlsx)
PDF: pdf, ps
Open Office: odt, odp, sxw, sxi, etc.
Text: txt, rtf
You will only need FlashPlayer plugin and go to their website to browse topics online and you can even download it with these formats: .pdf and .txt, or embed it in your websites.