Change link for graph to Excel

Q

QC Coug

I have a graph that is linked to Excel. I would like to change the sheet
that this chart in PowerPoint is referencing so a different chart is
included.

When I go to Edit->Links it shows the file that it is linked to along with
the cell references. Embedded on top of these cells is a chart. I want to
change the sheet name and leave the cell range the same so that a different
chart is showing.
 
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