I have 'Pages' on my iMac, but prefer to use 'LibreOffice' when I'm writing, having got used to it when using a ppc version on my old G5 iMac, then getting a newer version when I eventually got an Intel Mac (I'm an author). However, if I save copy as a word document to send to my publisher, my Mac always presents it as a 'Pages' document, which my publisher's system doesn't seem to like. Likewise, if I want to work on a document, I prefer it in a set up I'm familiar with (I'm a bit IT illiterate), yet stuff sent to me always opens in 'Pages'. It isn't a problem with things sent to me because I can copy them into a 'LibreOffice' document to work on them.
Do I have to delete 'Pages' to do this? (it wasn't a problem before I loaded 'Pages'). I don't really want to lose Pages completely as it has features that I or others may want to use later (Libre Office may have them too, but I don't know where they are.)
There appear to be no options to set the default WP programme/suite in 'preferences'.