The default FOV is rather low and annoying, I would like to increase the viewing angle up to something like 100, how do I do so?
Go to your My Documents -> My Games -> Skyrim -> skyrim
Create a backup of the skyrim.ini file in case you need to change back later.
Open the file, then scroll down to where it says [General] (for me it was at the top of the file).
At the bottom of this section, add fdefaultfov=XX (where XX is the FOV value you want to change to), in your case it sounds like you want it to be 100.
Save, exit, and play!
At the console (~ by default) Type "fov 100". There are reports that sprinting will reset this, so you may want to edit the Skyrim.ini file to set FOV. Open the Skyrim.ini, scroll down to where it says [General], then at the bottom of this section, add fdefaultfov=100