Office Language IDs

Language ------------------------- Geographic area ------------------------- Language tag ------------------------- LCID
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Arabic --------------------------- Saudi Arabia ---------------------------- ar-sa -------------------------------- 1025
Bulgarian ------------------------ Bulgaria -------------------------------- bg-bg -------------------------------- 1026
Chinese (Simplified) ------------- People's Republic of China -------------- zh-cn -------------------------------- 2052
Chinese -------------------------- Taiwan ---------------------------------- zh-tw -------------------------------- 1028
Croatian ------------------------- Croatia --------------------------------- hr-hr -------------------------------- 1050
Czech ---------------------------- Czech Republic -------------------------- cs-cz -------------------------------- 1029
Danish --------------------------- Denmark --------------------------------- da-dk -------------------------------- 1030
Dutch ---------------------------- Netherlands ----------------------------- nl-nl -------------------------------- 1043
English -------------------------- United States --------------------------- en-us -------------------------------- 1033
Estonian ------------------------- Estonia --------------------------------- et-ee -------------------------------- 1061
Finnish -------------------------- Finland --------------------------------- fi-fi -------------------------------- 1035
French --------------------------- France ---------------------------------- fr-fr -------------------------------- 1036
German --------------------------- Germany --------------------------------- de-de -------------------------------- 1031
Greek ---------------------------- Greece ---------------------------------- el-gr -------------------------------- 1032
Hebrew --------------------------- Israel ---------------------------------- he-il -------------------------------- 1037
Hindi ---------------------------- India ----------------------------------- hi-in -------------------------------- 1081
Hungarian ------------------------ Hungary --------------------------------- hu-hu -------------------------------- 1038
Indonesian ----------------------- Indonesia ------------------------------- id-id -------------------------------- 1057
Italian -------------------------- Italy ----------------------------------- it-it -------------------------------- 1040
Japanese ------------------------- Japan ----------------------------------- ja-jp -------------------------------- 1041
Kazakh --------------------------- Kazakhstan ------------------------------ kk-kh -------------------------------- 1087
Korean --------------------------- Korea ----------------------------------- ko-kr -------------------------------- 1042
Latvian -------------------------- Latvia ---------------------------------- lv-lv -------------------------------- 1062
Lithuanian ----------------------- Lithuania ------------------------------- lt-lt -------------------------------- 1063
Malay ---------------------------- Malaysia -------------------------------- ms-my -------------------------------- 1086
Norwegian (Bokmål) --------------- Norway ---------------------------------- nb-no -------------------------------- 1044
Polish --------------------------- Poland ---------------------------------- pl-pl -------------------------------- 1045
Portuguese ----------------------- Brazil ---------------------------------- pt-br -------------------------------- 1046
Portuguese ----------------------- Portugal -------------------------------- pt-pt -------------------------------- 2070
Romanian ------------------------- Romania --------------------------------- ro-ro -------------------------------- 1048
Russian -------------------------- Russia ---------------------------------- ru-ru -------------------------------- 1049
Serbian (Latin) ------------------ Serbia ---------------------------------- sr-latn-rs --------------------------- 2074
Slovak --------------------------- Slovakia -------------------------------- sk-sk -------------------------------- 1051
Slovenian ------------------------ Slovenia -------------------------------- sl-si -------------------------------- 1060
Spanish -------------------------- Spain ----------------------------------- es-es -------------------------------- 3082
Swedish -------------------------- Sweden ---------------------------------- sv-se -------------------------------- 1053
Thai ----------------------------- Thailand -------------------------------- th-th -------------------------------- 1054
Turkish -------------------------- Turkey ---------------------------------- tr-tr -------------------------------- 1055
Ukrainian ------------------------ Ukrainian ------------------------------- uk-ua -------------------------------- 1058
Vietnamese ----------------------- Vietnam --------------------------------- vi-vn -------------------------------- 1066
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Notes: Language tag (ll-cc) also sometimes referred to as language ID
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Refer: https://technet.microsoft.com/en-us/library/cc179219.aspx