Function to set an option that points to the local LibreOffice file
soffice.exe.
set_libreoffice_path(path)Returns nothing, function sets the option variable
path_to_libreoffice.
For a list of possible file path locations for soffice.exe,
see https://github.com/hrbrmstr/docxtractr/issues/5#issuecomment-233181976
if (FALSE) { # \dontrun{
set_libreoffice_path("local/path/to/soffice.exe")
} # }