I live in Chile, and just bought a new computer which came with Windows 8.1, and which I when I upgraded to Windows 10 it downloaded in Spanish, and from there I have not been able to download LibreOffice in English, which I want. Thank you for your help with this. Michael Easdon
PDS I am also in the process of trying to download Windows 10 in English as well.
(Why did you surrender to Win10?)
From where did you dowload? The standard installer (msi for Win) will install a multilingual LibreOffice. This does not depend on whether the installer itself is speaking Spanish.
Menu/Tools/LibreOffice/Language settings/Language - User interface.
Menú/Herramientas/Opciones/Configuración de idioma/Idiomas - Interfaz de usuario.