why is my thousand separator shown as dot rather than comma

why is my thousand separator shown as dot rather than comma

in the zoho spreadsheet, the thousand separator is shown as dot rather than comma and the decimal separator is shown as comma rather than dot. Much like the german number format.

however, I reside in Malaysia and the number format is like the commonwealth style where the thousand separator is comma and the decimal separator is dot. I have set my locale and timezones as Malaysia in zoho as well as on my windows 7 computer.

I have tried the format cells feature, but the dropdown only lists the german like number format and I cant change these.

how do I fix this to the commonwealth like number format ?