Looping through folder files

[ValeriaBreve]

Hello,

I am looking for guidance here...

I have a folder with actual and forecast data files, for the same products, each one containing the same columns but one will be stamped Aug, the other one Sept, etc with revised actual/forecast figures.

I need establish forecast accuracy and stability, so read the same forecast (e.g. Product A for Jan 2023) on every file and compare them. (n, n-1, n-2, n-3, etc)

Now, from PowerQuery I am able to get to the folder, rank the files, but then? What's best? Is it OK to have 1 query per file with the related file creation date and then make the relationships in the report? Or is there another way of handling this type of situation?

Thanks a lot!

Kind regards

Valeria 

[ImkeF]

You are welcome @ValeriaBreve  🙂

[ValeriaBreve]

Thank you so much Imke!!!!!!! It is the first time I have this type of data, I was more used to production data, so thanks for pointing me to the right direction! 

[ImkeF · Accepted solution]

Hi @ValeriaBreve ,
you should keep them in one query and use the Index column in your DAX measures to distinguish between them. 
Use the Combine Binaries method to create the consolidated query: New Combine Binaries Experience - Excelguru