get data from folder

[Cyriackpazhe]

Heyy, Had a small doubt. I'm trying to get data from a folder. The folder has two excel documents. 
1. What will happen if i click parameter and opt tranform.
2. There are several tables in the documents. If i click a table and press okay will only that table get combined. What about the other tables?
3. What are the purpose of the four queries that get created? could you explain the purpose of each.
4. Finally, when i load, it only the combined version of that table i selected is there in the model. What should i do to get the other tables.

[Cyriackpazhe]

@Omid_Motamedise @lbendlin Thanks for the valuable response

[Omid_Motamedise · Accepted solution]

Hi @Cyriackpazhe 

1- Clicking "Parameter" & "Transform"

If you click "Parameter", Power Query lets you filter the folder dynamically using a parameter.
If you click "Transform", it opens the folder contents in Power Query for further modifications before combining.


2- Selecting a Table & Pressing OK

Yes, only that specific table from all files will be combined.
Other tables from the files will be ignored unless explicitly selected and processed.

3- Purpose of the Four Queries

Transform Sample File – Defines how each file should be processed.
Sample File – Holds a single file's data for transformation reference.
Parameter (if applicable) – Used for filtering.
Final Query – The actual combined table loaded into Power BI.

4-Loading Other Tables

To get other tables, repeat the process:
Go to "Get Data" > Folder
Transform the data
Choose a different table inside Power Query
Load it separately

[lbendlin]

1. You will be taken to the Power Query Editor

2. yes, only the selected tables

3. Did you click the "Combine binaries"  button?

4. Repeat the steps for the other sheets.

Ideally you would instead hand craft the code, iterating through all Excel files in that folder and for each Excel file iterating through all sheets. Much more efficient.