Put 4 files back together into 1

I have a symphony divided into it’s 4 movements. I want to get these back together into one file. Import keeps making them separate tracks…how do I splice this together?
V 2.1.2
Thanks, Ron

  1. Download Audacity 2.3.3 via the link on the Audacity website: https://www.audacityteam.org/download/windows/
  2. Run the Audacity 2.3.3 installer to update Audacity to version 2.3.3
  3. Launch Audacity
  4. Import the 4 files
  5. Ensure that the tracks are in the correct order (https://manual.audacityteam.org/man/audio_track_dropdown_menu.html#Moving_Tracks)
  6. “Ctrl + A” (select All)
  7. “Tracks menu > Align Tracks > Align End to End” (https://manual.audacityteam.org/man/tracks_menu_align_tracks.html#align_end_to_end)
  8. Export in whichever format you prefer.