Google Docs Viewer allows users to quickly view PDFs, Microsoft Word documents and PowerPoint presentations online by viewing them in the browser without downloading them locally.

New files supported:
Microsoft Excel (.XLS and .XLSX)
Microsoft PowerPoint 2007 / 2010 (.PPTX)
Apple Pages (.PAGES)
Adobe Illustrator (.AI)
Adobe Photoshop (.PSD)
Autodesk AutoCad (.DXF)
Scalable Vector Graphics (.SVG)
PostScript (.EPS, .PS)
TrueType (.TTF)
XML Paper Specification (.XPS)

Editions included:
Google Apps, Google Apps for Business, Government and Education

How to access what’s new:
In Gmail, these types of attachments will now show a ‘View’ link, and clicking on this link will bring up the Google Docs Viewer.