It very much could be. I haven't used 2011, but the other versions need to load and process all the fonts so that they can create the stylized font menu. If you've got a lot of fonts installed, then it has to go through them all, first.
Now, I'm not sure if Excel has a menu like that, but it may still load all the fonts on startup. Word has the option in General prefs to turn off the WYSIWYG font menu.
However, both Word and Excel (2008) load in a few seconds on my machine. I toggled the WYSIWYG font menu in Word and didn't see a noticeable difference.
Now, I'm not sure if Excel has a menu like that, but it may still load all the fonts on startup. Word has the option in General prefs to turn off the WYSIWYG font menu.
However, both Word and Excel (2008) load in a few seconds on my machine. I toggled the WYSIWYG font menu in Word and didn't see a noticeable difference.
Allegedly Office 2011 installs 100 (I haven't installed 2011 and have. My machine loads Word 2008 in under 50 seconds from go, and that's with 1367 fonts. Came with the Mac, you really should use a font manager to keep.