Cell C16 on your summary tab is most likely a formula something like...

='Detailed'!C16

remove/delete that formula and the cell will no longer be linked.
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HTH...

Jim Thomlinson


"Michelle" wrote:

I have a 'summary' tab and a 'detailed' tab.

Cell C16 on both seem to be linked somehow. When I change C16 on the
'detailed' tab to be the text I need, it puts that same text in cell C16 on
the summary tab... which I need to be a formula etc.

How can I un-link these cells from tab to tab