2.4.172 BrtBeginPivotTableRefs
The BrtBeginPivotTableRefs record specifies the beginning of a collection of PivotTable identifier records as defined by the Workbook (section 2.1.7.61) part ABNF rules. The collection of records specifies the Non-Worksheet PivotTables (section 2.2.5.5) in the Workbook.