Pivot Table Cache

Hello,

Let's say I have a pivot table made from data in another workbook. The other workbook is then deleted.

Is there anyway to get the original data back?

My particular file is about 10 MB, but if I "save as" it's only 1 MB. Plus, the pivot table "works," so I'm pretty sure Excel still has my data cached somewhere. How can I access it?

I'm decent with VBA, so I'm open to any solution at all.

Thanks for any help!