Flat File is a trinket in The Binding of Isaac, added in the Repentance DLC.

Causes all spikes to retract, preventing them from dealing damage.

Works on Curse Room doors, Spiked Rocks, Spiked Chests, Spike-enemies, and Spikeballs (unless spawned by Singe).

Also retracts the spikes in Sacrifice Rooms, but the trinket can be dropped in order to use the room.

Does not prevent spiked attacks from The Pile or Mama Gurdy.

This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this trinket for the previous Repentance version, check this page instead.

The following special synergies and interactions for Flat File have been documented.

* Note that not all possible synergies and interactions are listed here.

• Check out the trinket description on the external Isaac Wiki.