The demo server is closed,how can I use the downloaded data?~help!

 
Now the demo server has been closed. And I can still download the 1 minutes history from the history center.But they are ".dat" file. How can I use them? 3x~
 
Try to click "Download" another time.
 
 
Thanks Mr. Rosh, I've downloaded them a lot of times.And the data files are surely in my mt4 directory. But double click the time frames under the "audusd" symbol dosn't work anymore, after the demo sever closed...
 

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