When shooting in XAVC, open clips in Da Vinci Resolve or Sony RAW viewer and export to the format of your choice. Import these converted files into Adobe Premiere Pro, FCP7 or Avid. FCP-X can edit in XAVC 4K and 2K. Adobe CC can also edit XAVC native.
Download the Adobe RAW plugin from Sony’s site to enable native support in Premiere Pro for the 4K/2K raw files created using the Sony AXS-R5 recorder.