The second big disruptive change is the new file format. Microsoft, to its credit, hasn’t touched the standard Word, Excel and PowerPoint file formats for 10 years. You never had to worry that your colleagues’ Macs or PCs wouldn’t be able to open your documents.Now you do. The new file formats (.docx for Word, for example) are much more compact than the old ones, and they’re also easier to recover from data corruption. But older versions of Office for Windows can’t open them without a free converter (available at microsoftoffice.com). Office 2004 for Macintosh can’t open them at all, although shareware and Web conversion utilities are available.
- READ THE FULL STORY
- Walt Mossberg's review