1、使用库函数shutil.copyfile

2、参考【Python】openpyxl 复制带格式的Excel 表格_openpyxl复制单元格格式_是小菜欸的博客-CSDN博客

def copy_excel_content(srcfile,dstfile):
    wb = openpyxl.load_workbook(srcfile)
    wb2 = openpyxl.Workbook()

    sheetnames = wb.sheetnames
    for sheetname in sheetnames:
        #print(sheetname)
        sheet = wb[sheetname]
        sheet2 = wb2.create_sheet(sheetname)

        # tab颜色
        sheet2.sheet_properties.tabColor = sheet.sheet_properties.tabColor

        # 开始处理合并单元格形式为“(<CellRange A1：A4>,)，替换掉(<CellRange 和 >,)' 找到合并单元格
        wm = list(sheet.merged_cells)
        if len(wm) > 0:
            for i in range(0, len(wm)):
                cell2 = str(wm[i]).replace('(<CellRange ', '').replace('>,)', '')
                sheet2.merge_cells(cell2)

        for i, row in enumerate(sheet.iter_rows()): #min_row=1,max_row=5
            sheet2.row_dimensions[i+1].height = sheet.row_dimensions[i+1].height
            for j, cell in enumerate(row):
                sheet2.column_dimensions[get_column_letter(j+1)].width = sheet.column_dimensions[get_column_letter(j+1)].width
                sheet2.cell(row=i + 1, column=j + 1, value=cell.value)

                # 设置单元格格式
                source_cell = sheet.cell(i+1, j+1)
                target_cell = sheet2.cell(i+1, j+1)
                target_cell.fill = copy.copy(source_cell.fill)
                if source_cell.has_style:
                    target_cell._style = copy.copy(source_cell._style)
                    target_cell.font = copy.copy(source_cell.font)
                    target_cell.border = copy.copy(source_cell.border)
                    target_cell.fill = copy.copy(source_cell.fill)
                    target_cell.number_format = copy.copy(source_cell.number_format)
                    target_cell.protection = copy.copy(source_cell.protection)
                    target_cell.alignment = copy.copy(source_cell.alignment)

    if 'Sheet' in wb2.sheetnames:
        del wb2['Sheet']
    wb2.save(dstfile)

    wb.close()
    wb2.close()