Google Docs has expanded file type support for 12 new doc types. Microsoft Office documents seem like a natural evolution for the Google Docs viewer. It may be a pleasant surprise to discover that Adobe files are now supported by the viewer. You can actually view an Adobe Photoshop file inside Google Docs--and it actually looks quite decent. It can be a great way to archive and track progress for web designers and project management teams within the Google business environment.
Microsoft Excel (.XLS and .XLSX)
Microsoft PowerPoint 2007 / 2010 (.PPTX — before, only .ppt and .pps were supported)
XML Paper Specification (.XPS)
Apple Pages (.PAGES)
Design file types
Adobe Illustrator (.AI)
Adobe Photoshop (.PSD)
Autodesk AutoCad (.DXF)
Scalable Vector Graphics (.SVG)
PostScript (.EPS, .PS)
TrueType (.TTF)