February 18, 2016
I'm wondering if an existing Power Query data set that has been cleansed and modified can be completely replaced with a new data set. I will have an updated set of data that needs to replace what is in the current file. Hoping this can be done without having to redo all the cleansing and modifications I have already done.
October 5, 2010
As long as your new dataset has the same structure as the old one then yes.
When I say structure I mean the dataset must have the same column names, number of columns, data types etc.
Even if some of these things are different then the PQ steps may only need a few tweaks to get it working again.