It's a bug.

--
Jim
"PaulB" wrote in message
...
| I've been using Office 2007 for a couple of months now and have not been
able
| to resolve an issue with the opening .xlsx files. The only way I can open
| files in the new format (whether they are files I have created myself or
| files that others have sent to me) is to first launch Excel 2007, then use
| file/open and navigate to a location where I have stored the file. I
cannot
| open files by double-clicking or by using right-click/Open with.
|
| I can open files in the old .XLS format by double-clicking them without
any
| trouble, and I can open new Word 2007 (.docx) and PowerPoint 2007 (.pptx)
by
| double-clicking, but not .xlsx files.
|
| I've tried doing an Office 2007 reinstall/repair, but to no avail.
|
| Any ideas?
| --
| Paul B