public int getFirstInternalSheetIndexForExtIndex(int extRefIndex) {if (extRefIndex >= _externSheetRecord.getNumOfRefs() || extRefIndex < 0) {return -1;}return _externSheetRecord.getFirstSheetIndexFromRefIndex(extRefIndex);}

public int GetFirstInternalSheetIndexForExtIndex(int extRefIndex){if (extRefIndex >= _externSheetRecord.NumOfRefs || extRefIndex < 0){return -1;}return _externSheetRecord.GetFirstSheetIndexFromRefIndex(extRefIndex);}
