Preset file created by Line 6 POD HD400 Edit, an instrument effects editor; contains user-defined settings that customize the sound of your instrument; different settings include drive, bass, treble, speed, and channel volume; settings are categorized under "FX," "AMP," "REVERB," and "GATE."

To create the H4E file, alter your settings, select File → Save As..., name the file, choose the save location, and click Save. To open the H4E file, double-click the file or select File → Open, navigate to the file, and click Open. In Windows, the default save location for H4E files is in the following directory: My Documents/Line 6/Tones/POD HD400 Edit In Mac, the default save location for H4E files is in the following directory: /Documents/Line 6/Tones/POD HD400 Edit NOTE: The H4E extension was replaced by .H5E when POD HD500 Edit was released.