For a preview to work, the file must be saved with a preview
picture. From the File menu, choose Properties, then choose the
Summary tab, and check the "Save preview picture" checkbox.


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com


"silverthorn1999"
wrote in message
...
When you go to excel, open box, tools button, there is a
selection for
"preview", which brings up a second screen. Then when you
click on any file,
it should show you a preview, and you can keep selecting files
to find the
one you want. Well, everyone of my excel files says "Preview
not
available". Does anyone know how I can change this???