How to adjust column space between two data sets

So essentially i want to to create a gap between the columns in a bar chart of the two data sets whilst preserving the lack of gap within each data set. two data setsl. I've included a rudimentary image of what i need to get done. I think it may be a problem with how I've arranged my data. But i cant seem tk figure it out. Any help would be amazing. Thanks in advancce. Sorry if i have worded my question wrong with incorrect terminalogy.

Edit; I've included a pic of a rudimentary sketch of what I'm on about and my data sheet.