Tracker doesn't index Excel (.xls) files by default

Binary package hint: tracker

I have many excel files on my system and I quickly noticed when tracker had finished it's initial indexing that their content was not indexed. After sifting through various forums and website I discovered that package "gnumeric" needed to be installed before this could happen.

I would suggest that whatever part of gnumeric makes this possible be made a dependent package for tracker. I see that gnumeric is a "suggested" package for tracker. Alternatively, perhaps gnumeric should be a "recommended" package.

If it need to be an optional package, then it would be nice to be able to enable it from the indexer preferences GUI.