This year Simchas Torah comes out on Friday. It can also happen that Pesach or Shavuos finishes on Friday in Eretz Yisroel. Is there a Neilas HaChag if Yom Tov ends on Friday?
When Shabbos follows a Yom Tov, the kedusha (holiness) of the Yom Tov "extends" itself into the Shabbos. (Some don't sing Shabbos Zemiros because of this.) So, many make Neilas HaChag by Shalosh Seudos.
One should not eat a large meal on Friday close to Shabbos.