There appears to be no way to reorder columns when using the Create CSV Table action. The current method is to delete existing rows and add new rows if the order needs to be changed, which is tedious if many columns are being used. Tangentially, the ability to drag and drop values would also be benificial.
Implementing any/all of the following would be great:
Bring Forward/Bring Backward/Bring to Front/Send to Back (like PowerApps)