必须创建一个带有参数fill_type=None的PatternFill对象，才能不获取单元格颜色。下面是一段代码片段，用于去除现有excel工作簿中所有单元格的颜色和边框：

import openpyxl

# Load workbook
wb = openpyxl.load_workbook('workbook.xlsx')

# Initialize formatting styles
no_fill = openpyxl.styles.PatternFill(fill_type=None)
side = openpyxl.styles.Side(border_style=None)
no_border = openpyxl.styles.borders.Border(
    left=side, 
    right=side, 
    top=side, 
    bottom=side,
)

# Loop through all cells in all worksheets
for sheet in wb.worksheets:
    for row in sheet:
        for cell in row:
            # Apply colorless and borderless styles
            cell.fill = no_fill
            cell.border = no_border

# Save workbook
wb.save('workbook_modified.xlsx')

最简单的解决方案：

cell.value = None
cell.border = None # Border() more recommended
cell.fill = PatternFill()