Two known solutions:
1) Save the WB as "97-2003" (xls) instead of XLSX.
2) Ask the recipient(s) to install the Compatibility Pack:
http://www.microsoft.com/downloads/d...3-c6bb74cd1466
Micky


"mj61274" wrote:

The person on the receiving end cannot open the spread because it is
encrypted. I just upgrade to office 2007. I do I turn this feature off?