Checking If A Sheet Exists In An External Closed Workbook

Question

I want to test whether certain sheets in the current workbook exist in another closed workbook and return a message saying which sheet/s are causing errors.

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Answer 1

Sub Tester()

MsgBox (Not IsError(Application.ExecuteExcel4Macro("'C:\temp[temp.xlsm]Sheetxyz'!R1C1")))

End Sub