在EXCEL中，能不能用函数随机生成六位数字字母组合

=IF(RANDBETWEEN(1,3)=1,CHAR(RANDBETWEEN(48,57)),IF(RANDBETWEEN(1,3)=2,CHAR(RANDBETWEEN(65,90)),CHAR(RANDBETWEEN(97,122))))&IF(RANDBETWEEN(1,3)=1,CHAR(RANDBETWEEN(48,57)),IF(RANDBETWEEN(1,3)=2,CHAR(RANDBETWEEN(65,90)),CHAR(RANDBETWEEN(97,122))))&IF(RANDBETWEEN(1,3)=1,CHAR(RANDBETWEEN(48,57)),IF(RANDBETWEEN(1,3)=2,CHAR(RANDBETWEEN(65,90)),CHAR(RANDBETWEEN(97,122))))&IF(RANDBETWEEN(1,3)=1,CHAR(RANDBETWEEN(48,57)),IF(RANDBETWEEN(1,3)=2,CHAR(RANDBETWEEN(65,90)),CHAR(RANDBETWEEN(97,122))))&IF(RANDBETWEEN(1,3)=1,CHAR(RANDBETWEEN(48,57)),IF(RANDBETWEEN(1,3)=2,CHAR(RANDBETWEEN(65,90)),CHAR(RANDBETWEEN(97,122))))&IF(RANDBETWEEN(1,3)=1,CHAR(RANDBETWEEN(48,57)),IF(RANDBETWEEN(1,3)=2,CHAR(RANDBETWEEN(65,90)),CHAR(RANDBETWEEN(97,122))))

难度大在，ASC码分布是这样的。48到57是数字0-9，65-90是大写字母，97到122是小写字母，不连续，计算会比较麻烦。
找到一种简单办法。
你把0-9，a-z,A-Z,输入到A1至A62－－这并不难吧。
然后，在B1输入=INT(RAND()*62)，然后右拉到G1.也好做
最后，在1中输入=INDIRECT("A"&B1)&INDIRECT("A"&C1)&INDIRECT("A"&D1)&INDIRE