Inserting a Calc Chart into a Text Document
From LibreOffice Help
You can insert a copy of a chart that is not updated when you modify the chart data in the spreadsheet.
- Open the text document that you want to copy the chart to.
- Open the spreadsheet containing the chart that you want to copy.
- In the spreadsheet, click the chart. Eight handles appear.
- Drag the chart from the spreadsheet to the text document.
You can resize and move the chart in the text document as you would any object. To edit the chart data, double-click the chart.