interrupt while loop if column number is 14 vba : Firstly apologize about simple question.

I want to don't execute while loop when column number of the cell that is executing the loop be 14.

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For Each xRow In xRg.Rows

        xStr = ""

        For Each xCell In xRow.Cells
            xStr = xStr & xCell.Value & Chr(59)
        Next
        
        
          While Right(xStr, 1) = Chr(59) & xCell.Column <> 14
          
          
           xStr = Left(xStr, Len(xStr) - 1)
              
        Wend

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Best regards

Luis Borja