从Excel到Image

Question

问题：使用python（最好是openpyxl），我可以使用什么或需要做什么将图表导出为图像？

我正在与

openpyxl一起工作，我也有同样的问题。 我在文档中搜索了，但我什么都没得到。经过长时间的浏览后，我在YouTube中找到了解决方案。唯一的问题是我们必须添加另一个库调用“ win32com”

以获取图表，然后将它们保存为图像。

Answer 1

---解决方案---

import openpyxl
from openpyxl.chart import BarChart, Reference
from win32com.client import Dispatch

#I used Pathlib to get the absolute path of the workspace.
import pathlib

workbook_file_name = str(pathlib.Path().resolve()) + r"\barChart.xlsx"

#With this function I created an example xlsx.
def create_xlsx():
    wb = openpyxl.Workbook()

    sheet = wb.active

    for i in range(10):
        sheet.append([i])

    values = Reference(sheet, min_col=1, min_row=1,
                       max_col=1, max_row=10)

    chart = BarChart()

    chart.add_data(values)

    chart.title = " BAR-CHART "

    chart.x_axis.title = " X_AXIS "

    chart.y_axis.title = " Y_AXIS "

    sheet.add_chart(chart, "E2")

    wb.save(workbook_file_name)

#--- HERE IS THE SOLUTION! ---
def export_image():
    app = Dispatch("Excel.Application")
    # It's important to use the absolute path, it won't work with a relative one.
    workbook = app.Workbooks.Open(Filename=workbook_file_name)

    app.DisplayAlerts = False

    for i, sheet in enumerate(workbook.Worksheets):
        for chartObject in sheet.ChartObjects():
            print(sheet.Name + ':' + chartObject.Name)
            # It's important to use the absolute path, it won't work with a relative one.
            chartObject.Chart.Export(str(pathlib.Path().resolve()) + "\chart" + str(i+1) + ".png")

    workbook.Close(SaveChanges=False, Filename=workbook_file_name)

def main():
    create_xlsx()
    export_image()

if __name__ == "__main__":
    main()

---模块版本---

openpyxl ==3.0.10

Pywin32==304

---参考---

在这里是视频的链接

I在此读取一些文档上找到了这一点。

如果您知道图像在哪里可以做

from openpyxl_image_loader import SheetImageLoader

# Load your workbook and sheet as you want, for example
wb = load_workbook('path_to_file.xlsx')
sheet = wb['required_sheet']

# Put your sheet in the loader
image_loader = SheetImageLoader(sheet)

# And get image from specified cell
image = image_loader.get('A3')

# Image now is a Pillow image, so you can do the following
image.show()

# Ask if there's an image in a cell
if image_loader.image_in('A4):
    print("Got it!")

如果您不确定工作簿中的图像在哪里，则可以尝试通过单元格进行迭代，直到找到图像为止。

Answer 2

导出函数在

'xlwings_chart_object'上不起作用，但确实具有对wincom_object

的引用。

wincom_object

是元组中的第一个项目。然后您可以打电话

api

。

这对我有用：

Answer 3

Export