Fix NotSupportedException when deleting ExcelChartsheet#2367
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JanKallman merged 1 commit intoMay 29, 2026
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…tsheet The Delete method was attempting to access the PivotTables collection on all worksheet types. However, ExcelChartsheet throws NotSupportedException when accessing PivotTables. Added a type guard to skip PivotTable cleanup for chart sheets.
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This PR adds a type guard to ExcelWorksheets.Delete() to prevent it from attempting to access the PivotTables collection on ExcelChartsheet objects. This aligns the behavior with the existing guard for Comments found earlier in the same method.
Changes: