Office 2003 SP3 Blocks Older File Formats
Update: Microsoft has made it easier to unblock the blocked file formats. There are three methods, one of which is a downloadable update that automatically re-enables all the blocked file types.
Service Pack 3 for Microsoft Office 2003 blocks many older file formats. These include:
- Corel Draw, .cdr
- Some Lotus files, .wk1, .wk3, .wk4, .wks
- Powerpoint files older than PPT 97
- Word files that are older than Word 6.0 for Windows
There is a workaround if you want to re-enable access to these formats.