Use Template for Content of a Post

I want a way in which when I press on write post I can have the content of the post already filled in with some content (i.e. a table) that I can add to. Ideally this would only happen in certain categories or have the option when writing the post to choose which template or pre filled content I want to use.

The idea for this is to have a table with heading already in the content section when the person clicks write post and then they can fill the table in with information.

I think I remember there being a plugin for this a while ago but cannot for the life of me think what it was called. Even after searching for a while I cannot find it but then again not knowing what is was called could mean I am searching for the wrong thing!

Any help on this would be appreciated.

Thanks