طحونة حنا. Group or ungroup data in a PivotTable Excel. Group or ungroup data in a PivotTable. Excel for Office 365 Excel 2019 Excel 2016 Excel 2013 Excel 2010 Excel 2007 More Less. Grouping data in a PivotTable can help you show a subset of data to analyze. For example, you may want to group an unwieldy list of dates or times (date and ...