Some comments

[Nicholas Lee <nj lee plumtree co nz>]

Some queries and comments.  

   Is there a reason it takes so much memory?  I have 200K on disk
sheets blow out to 80Mb (according to top) on load and 110Mb after a
few saves.  These are spreadsheets with multiple sheets.

  Saving/loading in native format is slower than to/from XLS format.  I
assume this is a libxml problem.  This is a esp a problem with the
memory size above, makes my 192Mb laptop start to thrash with other apps
loaded.  Not good when you want to shut down quickly.

 
  There seems to be no way to scroll though the sheets if you have to
many.  ie the tabs for the sheets at the bottom go pass the end of the
window. 



  Is there a generic way to write functions?  (ie user defined
custom_fn().)  


Nicholas