Nota: (+tx exceso_creds_tipo_t_ciclo_c)

Spanish to English Other Education / Pedagogy philology

In a transcript, there are grades given for Asignaturas extra -curriculares.

Under the heading tipo, there is "+L2"
1. What is the +L2
2. What do the following mean?
Nota: (+tx exceso_creds_tipo_t_ciclo_c)
(*Post_Fin_estudios)
(s Opt/LibC_no_superada)
(otro_valor Elegida_extra)

This is exactly how it appears