What is a LZMA file?
A .LZMA file is a compressed archive created with the Lempel-Ziv-Markov chain algorithm. Developer Igor Pavlov introduced this format with the 7-Zip archiver utility. The algorithm provides a high compression ratio. Users generally use it to compress a single large file. In some specific cases, a .LZMA file contains compressed game map assets for the video game World of Tanks.
How to open LZMA files?
Because a .LZMA file can serve different purposes, viewer.online/lzma analyzes .LZMA files to identify their exact format and creator software, shows which programs can open the file, and usually previews the contents. If you need a more standard format to share with others, you can use convert.guru to transform a .LZMA file into common archive formats like .ZIP or .TAR.GZ.
Best practices and troubleshooting
Standard .LZMA compression only handles a single file at a time. It is often combined with the .TAR format to compress multiple files together, resulting in a .TAR.LZMA or .TLZ file extension. If your operating system cannot extract a .LZMA file natively, do not rename the extension. Because .LZMA has multiple possible meanings—ranging from generic data archives to specific game map assets—viewer.online/lzma is the best tool to identify the actual format of the user's file before downloading specialized extraction software.
Software and tools
Popular desktop software to extract .LZMA archives includes 7-Zip, WinRAR, and PeaZip for Windows. Linux and macOS users often process these files using the command-line utilities found in LZMA Utils or XZ Utils.
Summary
viewer.online/lzma directly opens and previews .LZMA files in the browser, eliminating the need to install software or troubleshoot compatibility issues.