How to load and investigate own (uncleaned) data

[komoseid]

The tutorials naturally open and investigate prepared data, but could we have a tutorial for which approaches to use when you have your own data and want to load, open, and investigate whether this data fits into the 4D modeller scope?
I have some output from an Earth System Model that I would like to play around and find out what I can do with it within the 4D modeller scope, but I am stopped by the initial loading of data. This might be due to my (lack of) R-skills of course, but fdmr should be useable for me as well.