Opening Realm files of format version 20 is not supported by this version of Realm

I've just started using Realm as my local database for an application that I've created, I've set up Realm in my Xcode project and everything, and I've downloaded the Realm Studio, however. I tried to open the Realm file in the Realm Studio, but it says "Opening Realm files of format version 20 is not supported by this version of Realm". Does anyone know rather it is a problem with the Realm Studio or my Realm files? My Realm Studio version is (5.0.1)