Forum Discussion
rpmm
3 years agoRegular Visitor
Adjust columns in csv before combining?
I have a folder full of csv files which I am currently combining by adding a folder as a data source. The files are exports from an order report (files are by month and year). For 2022, the order rep...
menglaro78
Microsoft Employee
3 years agoHello,
if you used Folder as your data source, surely Power Query created the structure to combine the data.
In doing so, it creates the sample transformation based on the first file it finds in the folder.
That's the place to add your new column and get it over to the rest of the Power Query.
Marco
rpmm
3 years agoRegular Visitor
I don't see the helper queries on the left. I only see the main query which does not have a place to set the combination sample file.