This is a new feature introduced with Office 2003 SP3. Install this REG
file:

http://download.microsoft.com/downlo...blockExcel.reg

To read more about it:

http://support.microsoft.com/kb/938810/en-us

--
Jim
"PA" wrote in message
...
| When I try to open a *.wk4 file in Excel 2003, I get the following message
| "You are attempting to open a file type that is blocked by your registry
| polici setting".
|
| I used to be ble to open these before.
|
| How can I do so?