Converting headings (.odt -> .tex)

[Ian Fantom <ian-0jttZa1E5sTe9xe1eoZjHA@public.gmane.org>]

I've tried converting a book in .odt (LibreOffice Writer / Ubuntu) to 
.tex and viewing it in Texstudio.

It's not converting any of the headings and subheadings - just producing 
normal text. I used the '-s' and the '-o' options.

I think there must be something I haven't understood in the Pandoc User 
Guide (https://pandoc.org/MANUAL.html)

I was expecting some way of defining a conversion table from Writer to 
Latex. For instance:

'Preface' is in style 'subtitle' in Writer, and is converted to: 
'\protect\hypertarget{anchor-4}{}{}Preface' and appears as normal text 
in .tex.

Any ideas how I should proceed?

Thanks, Ian Fantom