There is no way of doing it with numbers entered from the keyboard in Word,
other than by entering the separator (your digit grouping symbol) from the
keyboard as well.
If the number is created in some way by a field construction, then there are
formatting switches that can be incorporated into the field that will insert
the separators when they become relevant.
See "Formatting Word fields with switches" on fellow MVP Graham Mayor's
website at
http://www.gmayor.com/formatting_word_fields.htm
--
Hope this helps.
Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.
Doug Robbins - Word MVP
"Vu Quoc Huy" Vu Quoc
wrote in message
...
I can make its easyky in Excel by pick Comma style, but I don't know how to
do in Word. Thanks and good luck to all guys in the word.