A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
If you mean you want the Power Query result on an existing worksheet instead of creating a new worksheet:
- Go to "Data" > "Queries & Connections."
- Right-click the query and select "Load To."
- Select "Table."
- Select "Existing worksheet."
- Choose the cell where you want the Power Query table to start, then click "OK."
Microsoft explains the load options here:
https://support.microsoft.com/en-us/excel/create-load-or-edit-a-query-in-excel-power-query
If by "without adding any new columns" you mean you want Power Query to keep only the columns already in your existing table, you will need to remove the unwanted columns in Power Query before loading it. Power Query loads the columns returned by the query.
If the issue still persists, to help narrow down the issue:
- Are you trying to load the query into an existing Excel table that already contains data?
- Are extra columns being added when you refresh the query?
Click "Add comment" to let me know.
Thanks!