Pre-mapping mapping?

[shadowwulf]

Ok so with great thanks to Pickle, I can now restart my game.
But before the mapping begins I would like to poke your brains on something…

And please feel free to reply with a link to something that will answer this for me! lol.

Is there anyway to pre-map everything. My thoughts on this so far were to use Excel.
I pick an area... say 200x200 cells (yeah i know thats a HUGE game:-P)
Then I use borders to outline main areas and mark like castles and whatnot.
I can also use a legend to mark specific things like camps and rivers...
Use background colors to mark out grassy areas vs mountains and whatnot...
Basically make a game "map" and this even lets me make the cells square so that i know how many rooms can be in a flat area... then work on multiple floors or underground...
And my favorite perk... everything is laid out and my rooms will make sense... and if i wanted a forest maze or something i could map out what rooms link where but still take the same amount of space...

another things is this method(if kept up to date) can do is...
say a mapper has an idea... quickly maps it out in excell... hands to team or leader who decides where ti fits best...
and if you want to move areas around... you can look at correlating room numbers and meticulously go through and change the file names and the exits... instead of remapping  and guessing!

well any questions or answers will be appreciated.

Adam