' File EnterKey
' Some comments on the use of this key.

'1.   The last statement on your worksheet must be followed by the Enter Key unless a 
'       comment statement follows. 

'2.   The program could add this Enter Key but there is a catch:  If you open a file and
'       make no changes, you expect to leave the worksheet by ending the program or
'       by perhaps loading another worksheet file. IF YOU MADE NO CHANGES, THEN
'       no error messages to save the file would occur. If you MADE CHANGES, then
'      you expect a warning whether to save the file.

'3.   Now the catch:  Say the program add the final Enter Key and you continue to 
'      execute and possibly do graphing, etc. You save the file (F1) or use SaveAs.

'      No problem. Now you decide to exit this worksheet -- End the program or, load
'      another file. Since the worksheet has been CHANGED, you get the warning 
'      whether to save the file. You then may load another worksheet and with NO 
'      CHANGES, decide to exit it only to RECEIVE an error message asking to save
'      the (unaltered) worksheet. 

'      Thus, if you were to demo a series of finished worksheets, then upon loading a 
'      new worksheet, you again get the error message that the "file has been altered"
'      and asking if you (again) want to save it.

' - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
'      To avoid this problem, the program will not generate the Enter Key.
'      WORK AROUND?  Just add a comment (or just the symbol) after your last statement
'      on the same line.  (Comments not processed anyway.)
