Linked Workbook cells

I'd like -

Workbook 'A' cell A1 to = Workbook 'B' cell A1

I'd like to be able to enter data in either workbook that would update the other automatically.

I know it can be done one way but not sure how to do it both ways, if it's even possible???

Thanks!

Yikes... you're looking at circular references between workbooks. I'm honestly not sure if you can, and I wouldn't recommend it even if you could.

My suggestion in this case would be to create a "Master" workbook, where you keep the key stat. Link both other workbooks to it. That way you've got one place that you need to go to update the value, and it will feed both others to make them consistent.

If you're doing this with lots of cells, rather than just one, then I'd actually go even further and use a database for the back end.