Hari judging by the way the data is structured, it looks like you opened that log in Excel?
If so, for that column and it’s rows, you need to change the number format to whichever date and time format is suitable for you. I’d suggest the format option in Excel that displays the date and time in this sort of format 2014-06-26 04:07:31. You can achieve this by highlighting all of the values in that specific row and see if there’s a “Format Cell(s)” option in the content menu that appears or you can also find this option in your Excel Toolbar.
The format menu should look like this:
