After certain edits in PowerPivot in Excel 2013, Power Query connections are read-only and further edits are blocked in Power Query.
After you applyOctober 13, 2015, update for Office 2013 (KB3039800) , September 8, 2015, update for Office 2013 (KB3039739) and MS15-099: Description of the security update for Excel 2013: September 8, 2015 (KB3085502) , the edits are blocked and Power Query can change the queries in these connections. The following actions in PowerPivot are blocked for tables that are loaded by using Power Query:
- Delete columns
- Rename columns
- Change the data type of a column
- Delete tables
- Rename tables
This table was created with Power Query. To change this table, use Power Query instead.