Connecting to Audit Trail .DAT using SQL?

I have been using SQL Server to connect to my .DATs without issue and today tried connecting to the AUDITTR.DAT but am getting the message that the object does does not exist. I am certain this isn't a typo or something simple like that, so I'm wondering if there is a limitation to connecting to this particular DAT. Has anyone successfully connected to their audit trail .DAT?

I am using the same credentials I use for all, which are those specified in "Set up Security" for 3rd party program use.

Any help would be appreciated!

Thanks,

Phil