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		Guest
I just got Office 2007 last week. I've created a spreadsheet, saved it and
sent it on to a coworker. He can't open it because the file extension is xltx
instead of xls. How can I save this so he can open it in his 2003 version?
Thank you.
				
			sent it on to a coworker. He can't open it because the file extension is xltx
instead of xls. How can I save this so he can open it in his 2003 version?
Thank you.
 
	