Are you looking for office software suit that is similar to Microsoft  Software Programs like Word, Excel, PowerPoint and other interesting characteristics that make your day-to-day work easy. I found that  Zoho Software Programs  are useful online alternatives. You can upload and edit file with the following extensions:  html, doc, docx, sxw , odt, rtf, jpg, gif, png and  text. Also you can publish documents, spreadsheet and presentation easily. Here an interesting review of Zoho software.