Exciting Fiber is a rare crafting material dropped inside of The Excitatron 6000. This is a type of Level 90 “treasure dungeon” introduced in Patch 6.05 of Endwalker.
A party of up to eight players can enter The Excitatron 6000 through a portal spawned after deciphering any Timeworn Kumbhiraskin Map and opening the treasure chest at its indicated location. The portals are random, however, and may or may not spawn after opening a particular chest.
