Passwords on ODF files

[Melanie]

On Friday 10 August 2007, Larry Hartman wrote:
  > >
  > > 36^10/2 = 1,828,079,220,031,488 guesses on average to find a 10
  > > character password.  In other words about 60 million times longer.
  > >
  > > Matt Flaschen
  >
  >
  > I notice in your math that 36 is the base number, why so?  I was
  > expecting 32 as the base number.
 
Maybe 26 letters in the alphabet + 10 numerical digits?