When you map the contents of a spooled file, then you should consider, if you are going to use a proportional font or a fixed font. Most fonts are proportional i.e. that all the characters does not have the same width so e.g. the letter 'i' is much more narrow than 'M'.
For the fixed fonts like Courier and Letter Gothic all characters have the same width, which can be useful if you want to map the spooled file in one, single remap without loosing a nice layout in the output. Columns of texts will e.g. normally look fine in a fixed font unlike for the proportional fonts.
One suggestion for a fixed font is Courier New, where you can see an output like this:
Where e.g. Arial does not look good:
Other fixed fonts, that you can consider are e.g. Letter Gothic or Lucida Console.
