How to change the default 000 to indian standards in 00,00,000?

How th change the default 000,000 -seperator to indian standards of 00,00,000

Format Custom:

[>=10000000]##\,##\,##\,##0.00;[>=100000]##\,##\,##0.00;##,##0.00


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Kind regards,

Niek Otten

"ananthan chennai" <ananthan [email protected]> wrote in
message news:[email protected]...
> How th change the default 000,000 -seperator to indian standards of
> 00,00,000