File Menu

New Clears the Source window to start a new file
  Open Loads an existing source file
  Merge Merges one or more files with the current file
  Next Displays the next file in the file list specified at start-up
  Save Saves the current file
  Save As Saves the current file under a different name
  Save All Saves all modified files
  Close Closes the current file
  Print Prints a selection or the current file
  DOS Shell Temporarily exits to DOS or OS/2
  Exit Leaves PWB

At the bottom of the File menu, PWB displays a list of recently opened files. This helps you access the files you've been working with.