Architecting and designing
  
LST files check in/out
From the list of .LST files, select the one whose contents you want to Check In or Out, Freeze or Unfreeze, or Delete. The name should be assigned to give some hint as to the purpose.
All .LST files are comma separated value (CSV). Use any text editor to read the contents.
Modifying a .LST file might render it useless to System Architect.