How-To Geek on MSN

Don't just hit save: 5 Excel formats that will change the way you work

Upgrade from standard Excel workbooks to specialized formats that shrink, shield, and streamline your spreadsheets.
How-To Geek on MSN

Why Excel files get huge, and the 5 fixes that shrank mine from 50MB to 2MB

Excel files bloat from ghost used ranges, formatting, pivot caches, and images. These quick fixes massively cut the size of ...
Network World

Microsoft going to XML as default file format in Office 12

Microsoft said Thursday that XML would be the default file format for three applications when it ships Office 12 late next year. The company said its new Microsoft Office Open XML Formats would be ...
Ars Technica

Office 12 to use XML for file formats

According to Microsoft, the upcoming version of Office (Office 12, for now) will make use of XML as the default file formats for the big three apps: Word, Excel, and PowerPoint. While full details on ...