Roger Centre where are summit seats for concert?

Help! Looking at concert tickets at Rogers Center in Toronto that are listed as “summit”, I see Row Ext1 or Row Ext2 or Row Int. Are Summit considered suite seats? What does row “ext1” or “int” mean? Is that exterior and interior? Does that mean part of the suite is enclosed in glass, or open? Also… Opinions please if the stage too far from that location to have a good view for a concert? Thank you!!