Sparklines allow small charts to be placed within worksheet cells to provide a visual representation of data trends. PivotTables in Excel 2010 have improved performance and new features like repeating labels. The new Slicer feature allows intuitive filtering of large amounts of data in PivotTables and PivotCharts. PowerPivot is a new add-in that provides powerful data analysis tools within Excel. Charts in Excel can now be created by selecting a chart type on the Insert tab rather than using the chart wizard. Basic chart customization options include moving charts to new sheets, changing names, layouts, styles, and adding titles and data labels.