是否可以将excel文件保存到flask中并从内存中发送？

pip install pandas

from flask import Flask, send_file
import pandas as pd

app = Flask(__name__)

@app.route('/download_excel')
def download_excel():
    # 读取Excel文件
    df = pd.read_excel('path/to/excel_file.xlsx')

    # 将Excel文件保存到内存中
    excel_data = io.BytesIO()
    with pd.ExcelWriter(excel_data, engine='xlsxwriter') as writer:
        df.to_excel(writer, index=False, sheet_name='Sheet1')
    excel_data.seek(0)

    # 发送Excel文件
    return send_file(excel_data, attachment_filename='excel_file.xlsx', as_attachment=True)

if __name__ == '__main__':
    app.run()