Have a look at what Debra has to say at
http://www.contextures.com/xlfaqApp.html#Unused

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Bernard V Liengme
www.stfx.ca/people/bliengme
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> On some worksheets my scroll bars are really tiny indicating that the
> worksheet has data in it however there isn't any. I have tried deleting
> everything out of the blank cells however it tells me that there is
> information all the way to BM10273, which there isn't.
>
> Can I set my workspace area?