Determines whether the workbook can only be opened in read-only mode.

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 public boolean ReadOnly{ get; set; }
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<p>Public Property <a class="confluence-link unresolved" data-content-title="ReadOnly" data-linked-resource-default-alias="ReadOnly" href="#">ReadOnly</a>() As Boolean</p>

          //--- Get the ReadOnly value for the workbook
          bool readOnly = wb.ReadOnly;

          //--- Set the ReadOnly value for the workbook
          wb.ReadOnly = true;
        

          '--- Get the ReadOnly value for the workbook
          Dim readOnly As Boolean = wb.ReadOnly

          '--- Set the ReadOnly value for the workbook
          wb.ReadOnly = True