wt file

A .wt file is Surge XT's native wavetable format: a short tagged header followed by the table's frames as raw samples, optionally trailed by metadata.

The header starts with a 'vawt' tag and carries the frame size, frame count, and format flags, with frames stored as raw 32-bit floats or 16-bit integers at power-of-two lengths from 2 up to 4096 samples. Because the layout is explicit, .wt files also make room for extra payload — Surge XT uses the trailer for its own wavetable metadata, including the scripts that generated a scripted table.