The LZW file extension is related to the Lempel-Ziv-Welch compressed archive format.

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LZW file extension - LZW compressed archive file

What is lzw file? How to open lzw files?

File type specification:

Archive and compressed file type icon Archive and compressed file type

The LZW file extension is used for archives compressed with the LZW compression method.

The compression format LZW is Lempel-Ziv-Welch or LZW compression. Basically LZW creates tables of strings while compressing/decompressing data, and then later outputs the ID of the string rather than the string itself saving space. Decompression reads this and it to build a table of strings as it reads, saving the compression from needing to write large string tables at the beginning of the file, thus making it very effective.

Help how to open LZW files:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert file with extension LZW:

As far as we know, this .lzw file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

Related links:

LZW Compression Tutorial

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