You can simply import relevant HTML documents to any OpenDocument based word processor like LibreOffice Writer and save them in a form of OTT document template.
Convert HyperText Markup Language web page to OpenOffice.org text document template.
We have found 2 software records in our database eligible for .html to .ott file format conversion.
Multiplatform software - convert html to ott on any platform
Apache OpenOffice Writer (OpenOffice.org Writer) is a fully-featured and free word processor and text editor from OpenOffice.org productivity suite.
Apache OpenOffice Writer is simple enough for a quick memo, yet powerful enough to create complete books with contents, diagrams, indexes, etc. You're free to concentrate on your ideas while Writer makes them look great.
Convert from html file
to ott file
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned html to ott. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
LibreOffice Write is a complete word processor and document publishing tool that supports a plethora of document formats and has many innovative features. It's an open source software that comes as an integral part of LibreOffice suite.