MS Publisher to LibreOffice Writer

I use LibreOffice 25.8.1.1 on a MacBook Tahoe 26.0.1. Since MS Publisher is no more and I have hundreds of docs in Publisher format, am looking to convert (other than to .pdf) to another program. I love LibreOffice but do not know how to use tri-fold template, linking page to page as in Publisher (an over-flowing cup and click on next box)–I found a template but it did not print or auto link the columns when I copied and pasted text. Do I need to use text boxes as in Publisher, etc. Is there a step-by-step tutorial for very basic people on how to use the tri-fold template, linking the columns, etc.? Any help would be appreciated.

Simply open a Publisher file with LibreOffice. It will open with the Draw component. Writer does not handle that file format, nor does MS Word.