I am very new to QGIS.
I have added three new fields using batch processor to all my layers (150 or so), but named them incorrectly. All I want to do is rename them correctly but I can't seem to do this. Everything involves creating new layers with the renamed column (refractor fields) or if I deleted the columns and add them again then again it creates new layers without them and keeps the old ones. It will take forever to save all these files under a new name and a new place, so I was wondering if there is any way to delete or rename the columns in the same layers and not create new ones.