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- Open it in Excel, and select the data of these two columns.
- Click on Insert >> Pivot Table >> Click OK
- Then add the Created Date to the Rows, and the Created Date and Resolution Date to the Values column. Then left-click on each item and go to Value Field Settings and choose the option Count Numbers, as shown below:
- Then you will obtain a graph. To change the graph type, just click on Design and Change Chart Type
- And you can obtain this graph:
If you need a cumulative graph, please select this option in Values Field Settings:
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