ProPresenter 6 (and later versions) uses that allow the software to:
Cómo descargar e instalar Biblias gratis en ProPresenter 6 (Guía paso a paso) biblia para propresenter 6 gratis
For the Reina-Valera 1960 (the gold standard of Spanish evangelical churches), you can easily find a free CTF file online with a little searching. For public domain or classic translations, free is the way to go. ProPresenter 6 (and later versions) uses that allow