Export Charts from Excel as images using Python

excel, python, win32com, winapi, windows

Solution

I had to look at some VBA examples to get this working. Although I hate answering my own questions, I am leaving this here for people who might need it.

    import win32com.client as win32
    wb = excel.Workbooks.Open(excel_file)
    selection = "A1:J30" 
    xl_range = wb.Sheets(<sheet_name>).Range(selection)
    excel.ActiveWorkbook.Sheets.Add(                  After=excel.ActiveWorkbook.Sheets(3)).Name="image_sheet"
    cht = excel.ActiveSheet.ChartObjects().Add(0,0,
                                            xl_range.Width, xl_range.Height)
    xl_range.CopyPicture()
    # add the chart to new sheet
    cht.Chart.Paste()
    # Export the sheet with the chart to a new file
    cht.Chart.Export(<image_filename>)
    # Delete the sheet
    cht.Delete()
    excel.ActiveSheet.Delete()
    # Close the book
    excel.ActiveWorkbook.Close()

Problem

I have been trying to export the charts from Excel as an image file (JPG or ING) in Python. I am looking at the WIn32com. Here is what I have till now. ``` import win32com.client as win32 excel = win32.gencache.EnsureDispatch("Excel.Application") wb = excel.Workbooks.Open("<WORKSHEET NAME>") r = wb.Sheets("<SHEET NAME>").Range("A1:J50") # Here A1:J50 is the area over which cart is r.CopyPicture() ``` This is where I am stuck. I need to copy the selected range to a file now. Any help or pointers towards the doc can help me a lot. I have modelled the above code based on the following VBA script: ``` Sub Export_Range_Images() ' ========================================= ' Code to save selected Excel Range as Image ' ========================================= Dim oRange As Range Dim oCht As Chart Dim oImg As Picture Set oRange = Range("A1:B2") Set oCht = Charts.Add oRange.CopyPicture xlScreen, xlPicture oCht.Paste oCht.Export FileName:="C:\temp\SavedRange.jpg", Filtername:="JPG" End Sub ``` Code Snippet from : http://vbadud.blogspot.com/2010/06/how-to-save-excel-range-as-image-using.html

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