Google Docs is a suite of products that lets you create different kinds of online documents, work on them in real time with other people, and store your documents and your other files; all online, and all for free.
To learn how it works click on Demo Google Docs
File formats includes.XLS (Microsoft Excel), .XLSX(Microsoft Excel), .PPTX (Microsoft PowerPoint 2007/2010), .PAGES (Apple Pages), .AL (Adobe Illustrator), .PSD (Adobe Photoshop), .DXF (Autodesk AutoCad), .SVG (Scalable Vector Graphics), .EPS (PostScript), .PS (PostScript), .TTF (TrueType), .XPS (XML Paper Specification), .DOC and .DOCX (Microsoft Word), .CSV, .HTML, .TXT, .RTF, .PDF (Adobe PDF).
