以office2003为例。
首先，自定义函数。
Excel自定义函数方法：
　　1.启动Excel 2003（其它版本请仿照操作），打开相应的工作表；
　　2.执行“工具→宏→Visual Basic编辑器”命令（或者直接按“Alt+F11”组合键），进入Visual Basic编辑状态；
　　3.执行“插入→模块”命令，插入一个新模块。再双击插入的模块，进入模块代码编辑状态；
　　4.将代码输入其中；

Function PinYin(Hz As String)
Dim PinMa As String
Dim MyPinMa As Variant
Dim Temp As Integer, i As Integer, j As Integer
PinMa = "a,20319,ai,20317,an,20304,ang,20295,ao,20292,"
PinMa = PinMa & "ba,20283,bai,20265,ban,20257,bang,20242,bao,20230,bei,20051,ben,20036,beng,20032,bi,20026,bian,20002,biao,19990,bie,19986,bin,19982,bing,19976,bo,19805,bu,19784,"
PinMa = PinMa & "ca,19775,cai,19774,can,19763,cang,19756,cao,19751,ce,19746,ceng,19741,cha,19739,chai,19728,chan,19725,chang,19715,chao,19540,che,19531,chen,19525,cheng,19515,chi,19500,chong,19484,chou,19479,chu,19467,chuai,19289,chuan,19288,chuang,19281,chui,19275,chun,19270,chuo,19263,ci,19261,cong,19249,cou,19243,cu,19242,cuan,19238,cui,19235,cun,19227,cuo,19224,"
PinMa = PinMa & "da,19218,dai,19212,dan,19038,dang,19023,dao,19018,de,19006,deng,19003,di,18996,dian,18977,diao,18961,die,18952,ding,18783,diu,18774,dong,18773,dou,18763,du,18756,duan,18741,dui,18735,dun,18731,duo,18722,"
PinMa = PinMa & "e,18710,en,18697,er,18696,"
PinMa = PinMa & "fa,18526,fan,18518,fang,18501,fei,18490,fen,18478,feng,18463,fo,18448,fou,18447,fu,18446,"
PinMa = PinMa & "ga,18239,gai,18237,gan,18231,gang,18220,gao,18211,ge,18201,gei,18184,gen,18183,geng,18181,gong,18012,gou,17997,gu,17988,gua,17970,guai,17964,guan,17961,guang,17950,gui,17947,gun,17931,guo,17928,"
PinMa = PinMa & "ha,17922,hai,17759,han,17752,hang,17733,hao,17730,he,17721,hei,17703,hen,17701,heng,17697,hong,17692,hou,17683,hu,17676,hua,17496,huai,17487,huan,17482,huang,17468,hui,17454,hun,17433,huo,17427,"
PinMa = PinMa & "ji,17417,jia,17202,jian,17185,jiang,16983,jiao,16970,jie,16942,jin,16915,jing,16733,jiong,16708,jiu,16706,ju,16689,juan,16664,jue,16657,jun,16647,"
PinMa = PinMa & "ka,16474,kai,16470,kan,16465,kang,16459,kao,16452,ke,16448,ken,16433,keng,16429,kong,16427,kou,16423,ku,16419,kua,16412,kuai,16407,kuan,16403,kuang,16401,kui,16393,kun,16220,kuo,16216,"
PinMa = PinMa & "la,16212,lai,16205,lan,16202,lang,16187,lao,16180,le,16171,lei,16169,leng,16158,li,16155,lia,15959,lian,15958,liang,15944,liao,15933,lie,15920,lin,15915,ling,15903,liu,15889,long,15878,lou,15707,lu,15701,lv,15681,luan,15667,lue,15661,lun,15659,luo,15652,"
PinMa = PinMa & "ma,15640,mai,15631,man,15625,mang,15454,mao,15448,me,15436,mei,15435,men,15419,meng,15416,mi,15408,mian,15394,miao,15385,mie,15377,min,15375,ming,15369,miu,15363,mo,15362,mou,15183,mu,15180,"
PinMa = PinMa & "na,15165,nai,15158,nan,15153,nang,15150,nao,15149,ne,15144,nei,15143,nen,15141,neng,15140,ni,15139,nian,15128,niang,15121,niao,15119,nie,15117,nin,15110,ning,15109,niu,14941,nong,14937,nu,14933,nv,14930,nuan,14929,nue,14928,nuo,14926,"