Quicklook has always been one of my favourite features of OS X since it first came out and today I stumbled across a feature that I did not know previously existed!
When you Quicklook a document (such as a PDF), in the top right hand corner it gives you the option to open that document in a relevant Application. What I did not realise is that if you ‘right click’ (or ‘secondary click’ as we call it on a Mac!) on the “Open With” option, it gives you a drop down list containing all the Applications that are capable of opening that file!
A quick and easy way of choosing a different Application to open that file with!