excel联系补充材料

https://zhuanlan.zhihu.com/p/619570724

VLOOKUP函数16种经典用法（史上最全，记得收藏）

http://www.0451nkw.com/jiaocheng/316055.html

excel表格行列互换怎么弄（快速互换表格的行和列的4种方法）

https://www.kafan.cn/edu/25985611.html

如何在Excel中合并两列单元格中的内容

https://baijiahao.baidu.com/s?id=1771491883724985948&wfr=spider&for=pc

excel数据透视表怎么做

https://blog.csdn.net/syjf1976/article/details/116957432

EXCEL中的POWER QUERY功能简介

https://baijiahao.baidu.com/s?id=1717675120064663606&wfr=spider&for=pc

Excel数据清洗大师Power Query，我整理数据2小时，同事2分钟搞定播

https://www.python100.com/html/107515.html

Excel截取字符串函数详解

https://www.excelhome.net/423.html

Excel中的日期时间计算，套路很全

27. =IF(B5>=90,"优秀",IF(B5>=80,"良",IF(B5>=60,"及格","不及格")))

28. =SUMIF(C1:C12,">15000",C1:C12)

https://baijiahao.baidu.com/s?id=1696669660504654646&wfr=spider&for=pc

SUMIF函数多种用法实例详解

https://baijiahao.baidu.com/s?id=1721670025943262701&wfr=spider&for=pc

SUMIFS函数的8种典型用法