They only allow Historical Deaths which is in EXCEL format.
ACT doesn't have BDM's online..
You could check out the newspapers, it has some Canberra Times stuff.http://ndpbeta.nla.gov.au/ndp/del/home
Or try sites like Monaro Pioneershttp://www.monaropioneers.com/
Canberra Cemeteries have some burials onlinehttp://www.canberracemeteries.com.au/
Or Try www.internment.net
it may have some.