STOP = 0x07

   +-----+-----------------------------------------------
   +     +
   +  H  +  Lenght of block (starting after next STOP)
   +  e  +  STOP
   +  a  +  'Notes'
   +  d  +  STOP
   +  e  +  Ver * 1000
   +  r  +  STOP
   +     +  Min ver required to read this file  (error)
   +     +  STOP
   +     +  Min ver to read all options in this file  (warning)
   +     +  STOP
   +     +  Last active tab
   +     +  STOP
   +     +          <--------- new header options here
   +     +
   +-----+-----------------------------------------------
   +     +
   +  1  +  lenght of block  (starting after *!* )
   +     +  stop
   +  s  +  offset to start of rtf block (starting after *!* )
   +  e  +  stop  ( *!*   <----- len + offset from here)
   +  c  +  tab name
   +  t  +  stop
   +  i  +  background color
   +  o  +  stop
   +  n  +  word wrap
   +     +  stop
   +  p  +          <-------- new options here
   +  e  +
   +  r  +  length of rtf  <----- start of rtf block
   +     +  stop
   +  r  +  rtf
   +  t  +  stop
   +  f  +          <-------- new options could be added here too
   +     +
   +-----+-----------------------------------------------