How to Maintain Column Order When Exporting DataSets from DataPrep

How to Maintain Column Order When Exporting DataSets from DataPrep

I have a daily scheduled export of a Dataset that absolutely must maintain a consistent column order. 

However, I'm finding that the exported column order changes from time to time which breaks the pipeline upstream.

Is there some method of ensuring that my job will export my data in exactly the same order every single time?