I think it might be best if you say which bits you would like explaining. I may be able to do most of the abbreviations, but that doesn't necessarily mean you understand the full version.
Just for starters, on the image ending 2836, your dad was awarded the
Burma Star (for his time with 117 Sqdn I'm guessing), and the
1939/45 Star which was awarded to all servicemen/women who served in an operational theatre of war for 180 days. Then in the centre of the image he was awarded the War Service Increment (WSI) initially for 3 years when he was on active service, which was then increased to 5 years (ie from 1940 to 1945) to also cover his time on the reserve. This was cash gratuity, in part to help service personnel resettle into civilian life and pick up their old job etc.
Then on image ending 3348, you will know most of the details anyway. ACSB in the centre bottom is the Aircrew Selection Board.
Let me know if you want anything else explaining.