.FLST File Extension
File TypeAdobe InDesign Flattener Presets File
This file is saved in a binary format, which requires a specific program to read its contents.
What is an FLST file?
Settings file created by Adobe InDesign, a digital and print publishing application; contains presets for flattening document content, such as transparent images and text; enables publishers to reuse flattening settings so they can create publications with the same properties.