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.ULAW File Extension

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File TypeRaw u-Law Audio File

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Rare Uncommon Average Common Very Common
CategoryAudio Files


This file is saved in a binary format, which requires a specific program to read its contents.


Standard format used in US telephony that contains raw CCITT G.711 u-law (pronounced "myoo-law") audio data; saved in an uncompressed format that can be played back by various audio programs.

Programs that open ULAW files
NCH Switch
FMJ-Software Awave Audio
FMJ-Software ACDR
Wave Flow
NCH Switch
Updated 5/16/2009

FileInfo - The File Extensions Database

This page contains information about the .ULAW extension and its known file associations. Our goal is to help you understand what a ULAW file is and how to open it.

The Raw u-Law Audio file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and therefore do not publish any information we have not verified.

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