Magenta 2D barcode v1.0.4
https://extensions.libreoffice.org/assets/downloads/z/chart2d1-0-4.oxt

English Dictionary v2024.01.01
https://extensions.libreoffice.org/assets/downloads/41/1704094893/dict-en-20240101_lo.oxt

Barcode v2.4.0
https://extensions.libreoffice.org/assets/downloads/292/1636358629/Barcode_2.4.0.oxt

MuseScore Example Manager v1.0.8
https://extensions.libreoffice.org/assets/downloads/z/musescore-1-0-8.oxt

Writer2xhtml v1.4
(Use this to export Writer file to an ePub ebook)
https://extensions.libreoffice.org/assets/downloads/z/1b97aa74_writer2xhtml.oxt