These are the navmeshes i have completed based on the spreadsheet figured im doing so many i might as well post them.
EretammusSennammuEggMine
http://www.mediafire.com/download/3e6vp93bm65bvuk/EretammusS...
http://s22.postimg.org/y5qzzm4wh/ganusnavmesh01.png
Eustanimus shrine
https://www.mediafire.com/?qlx6e12232rolw2
http://s29.postimg.org/51ghtw3mf/eustanimusshrine.png
FadathramAncestralTomb
https://www.mediafire.com/?2uf2d4vfojj9byk
http://s12.postimg.org/l6j9kjflp/Fadathram_Ancestral_Tomb.png

The Complete FairHelasUpper,Lower, and Cabin
https://www.mediafire.com/?j8ii9pp9lbdd3v5
http://s4.postimg.org/3o5his2i5/Fair_Helas.png
It looks very clean, keep up the good work.
Below a few points to keep your eye on.
- NavMesh close to walls, when NPC's could walk there
- You have missed some spots
- Do not NavMesh under objects like chairs and beds
- Are the doormarkers in the correct position?
- Did you check for errors?
- Did you Finalize them at the end?
I am not complaining just pointing out some things to keep in mind.