一、excel函数怎么提醒生日快乐
假设你A1是姓名，B1是出生年月日，C1输入
=IF(AND(MONTH(B1)=MONTH(NOW()),DAY(B1)=DAY(NOW())),"祝"&A1&DATEDIF(B1,NOW(),"Y")&"岁生日快乐!","距"&A1&DATEDIF(B1,NOW(),"Y")+1&"岁生日还有"&DATE(YEAR(NOW())+IF(TODAY()
然后将C列设置条件格式，当值包含“生日快乐”时设置字体为某种颜色，其它设置为另一种颜色（不设置也可以，反正已经有区分了）。
祝你成功。
二、excel生日提醒公式
C2 =IF(DATE(YEAR(TODAY()),MONTH(B2),DAY(B2))=TODAY(),"生日快乐!","距好友生日还有"&DATE(IF(DATE(YEAR(TODAY()),MONTH(B2),DAY(B2))>=TODAY(),YEAR(TODAY()),YEAR(TODAY())+1),MONTH(B2),DAY(B2))-TODAY()&"天!")
或
C2 =IF(DATE(YEAR(TODAY()),MONTH(B2),DAY(B2))=TODAY(),"生日快乐!","距好友生日还有"&DATEDIF(TODAY(),DATE(IF(DATE(YEAR(TODAY()),MONTH(B2),DAY(B2))>=TODAY(),YEAR(TODAY()),YEAR(TODAY())+1),MONTH(B2),DAY(B2)),"D")&"天!")
公式下拉
A2条件格式公式：
条件1公式 =DATE(IF(DATE(YEAR(TODAY()),MONTH($B2),DAY($B2))>=TODAY(),YEAR(TODAY()),YEAR(TODAY())+1),MONTH($B2),DAY($B2))-TODAY()=0
设当天的显示，示例为红底白字
条件2公式 =DATE(IF(DATE(YEAR(TODAY()),MONTH($B2),DAY($B2))>=TODAY(),YEAR(TODAY()),YEAR(TODAY())+1),MONTH($B2),DAY($B2))-TODAY()<=3
设1-3天内的显示，示例为粉红色字
条件3公式 =DATE(IF(DATE(YEAR(TODAY()),MONTH($B2),DAY($B2))>=TODAY(),YEAR(TODAY()),YEAR(TODAY())+1),MONTH($B2),DAY($B2))-TODAY()<=7
设4-7天内的显示，示例为蓝色字
复制A2，选中A2:C14，右键 - 选择性粘贴 - 格式
设置B2:B14格式，日期
