HELP on Amibroker ASCII import setting

#1
I am now working on a data file (.txt) and i would like to import it into the database in Amibroker. The txt file looks like this:

2015/01/02/09/14/01; 23676; 23676; 23676; 23676; 283
2015/01/02/09/15/00; 23680; 23709; 23665; 23672; 283

And I'm stuck at the first column, which displays date and time at the same time. I know I have to modify the ASCII import setting file (default.format), but after looking at the doc below I still have no idea on how i should change the setting to import the txt above.

P.S. Changing the format of my txt doesn't help, as it's a real-time data feed actually.

Link FYI: http://www.amibroker.com/guide/d_ascii.html

Thank you !!!