I don't understand the Double Double quote in open program seminar lesson 2 10 minutes in.  The explanation is that because there is spaces but why should that matter?

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Reply from Alex Hedley:

If you open up a command prompt (cmd) and use the command "cd" which is change directory and then pass it an argument of a file path like "c:/program files/office/" etc, if you don't quote the path the command prompt will think the space is another command so
cd "c:/program" "files/office/"
Whereas if you quote it, it will pass the whole string as a single argument
cd "c:/program files/office/"

It's like when you create a function that expects multiple arguments.

function createname(firstname, lastname)
  return first name & " " & lastname
end function

When you call this function you will get the string "Alex Hedley" returned
createname("Alex", "Hedley")