[]
Gets the index of this sheet tab within the workbook's sheet tab collection. The index starts at 0.
int Index { get; }
ReadOnly Property Index As Integer
workbook.Open("import.sjs");
ISheetTabs sheetTabs = workbook.SheetTabs;
if (sheetTabs.Count > 0) {
ISheetTab sheetTab = sheetTabs[0];
int index = sheetTab.Index;
}