How to export Items to File automatically!?

You can use the job scheduler to run dataports

look under the menu Administration --> It Administration --> job schedular

setup of the schedular is done

administration --> Application Setup --> job Schedular

the important item on the management setup form is the

interval check(sec) this setting is how often the job queue is checked

the Job Schedular setup is the actual jobs you want to run.
on the general tab is the frequence you want it to run, it can be day, hour minute, and month. and then the frequence of days, hours, minutes, ect.
on the scheduling detail tab is where you set what days you want it to run


on the admin menu for the job schedular management is where you start the job schedular running