Outlook holiday file for Srilanka Year 2016
Download the .hol file in the link to your Desktop. It only contains Sri Lankan holidays.
Double-click on the .hol file and switch to Microsoft Outlook. You need to run Outlook in the background to do this.
Check the Sri Lanka and click on the Ok button to add holidays to your calendar.
In case you already have Sri Lankan holidays, for instance 2014 holidays, you will be asked to confirm, just click on Yes button.
That's all you have to do to get the holidays to your calendar :)
Updated : The .hol file is updated with the latest changes for the year 2015 :) You have to delete the holidays before you run these steps, otherwise there will be redundant holidays.
To delete holidays :
Open the Calendar, go to View > Change View, and select List. This will list all the calendar entries.
Search for "Location : Sri Lanka, Categories : Holiday". This will filter all Sri Lankan Holidays.
Sort all according to the Start day so you can select all 2015 entries and delete.
Now you can add holidays to your calendar.