Graphs in xlsx File overwrite by openpyxl

Question

We need to update xlsx sheet using python script which do some calcualtion and update one worksheet. I choose openpyxl as it supoort writing/updating xlsx File. In the Excel she

Answer 1

Any graphs that exist in the document before opening will be deleted after saving. The only way around this ( i know of) is to create the chart in code.

Here is the documentation on how to create a chart in openpyxl

The example is a little broken, compare to this instead.

    values = Reference(ws, (1, 1), (1, 95))
    series = Series(values, title="Sample" )
    chart = LineChart()
    chart.append(series)
    ws.add_chart(chart)  

Answer 2

Openpyxl does not support graphs or chart as of now