Working in Excel 2007, open the Excel 200 file
The title bar (top of Excel window) will display "Compatibility Mode"
Click the Office button (circle at far left);
use Save AS and specify the file to be saved in Excel 2007 format;
if the workbook has macros then saved as an Macro-enabled Excel 2007 file
(this is a new feature). Close the file; Now reopen it.
best wishes
--
Bernard V Liengme
Microsoft Excel MVP
http://people.stfx.ca/bliengme
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"Prommin Supho" <Prommin wrote in message
...
I could not be able to covert a workbook from Excel 2000 to Excel 2007 by
using current file format while I opening a workbook that it will be close
automatically
What can I do ? please suggest and I have a plan to upgrade MS Office 2000
to 2007

If you need more info., or need me to send Example file I prompt to send
you
to check the root caused especially for this problem

Should you prompt to response would be appreciated
Thanks and regards