How to remove header and footer in Calc by default?

I use Calc for lots of things, lists etc.
Each time I print out a page of Calc I get “Sheet 1” at the top (header) and Page 1 at the bottom (footer).
I’ve worked out how to remove them from the current file I am working on but is there a way to stop them appearing by default… and eventually being able to insert them if ever I need either or both?

Also is there a way to stop a link, inserted into a cell, appearing orange on a grey sort of “highlighted” background? This is rather difficult to see and I would like a link to be on a white background in either blue or black.
Thanks for any help
Garoolgan

A new Calc document is created from a template. If not otherwise specified a template defined to be the ‘Default’ is used. Thus you have to create a document, change the settings as you want, save the document as a a template (.ots for Calc), goto ‘File’ > ‘Templates’ > ‘Manage…’ and import the template from the location it was first saved to. Now select that template and make it ‘Standard’ or ‘Default’.

I don’t know a way to change the character styles used for ‘Hyperlinks’ and for ‘Visited hyperlinks’. There are no named character styles in Calc. (It can be done in Writer.)