reference the file set by the VBA code "Set wb = Workbooks.Open(sWb)"

I am looking to add a validation by comparing the total of key columns imported with the below macro. I have the formula created, however as you can image the link (ie filename) is required. to reference the file name and path of the imported file?

Is there a way to add line in the marco to reference the file set by the VBA code "Set wb = Workbooks.Open(sWb)"?

I think it would be something like:

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Here is the Macro VBA Code:

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