View source for LZMA Alone

{{DISPLAYTITLE:LZMA_Alone}}{{FormatInfo
|name=LZMA_Alone
|formattype=electronic
|subcat=Compression
|extensions={{ext|lzma}}
|mimetypes={{mimetype|application/x-lzma}}
}}
'''LZMA_Alone''', also known as '''.lzma format''', is a compressed file format that uses [[LZMA]] compression. It is sometimes simply called '''LZMA''' or '''lzma''', but that can be misleading, because "LZMA" more commonly means the raw [[LZMA]] compressed data format.

LZMA_Alone is deprecated, in favor of [[XZ]]. Other LZMA-based alternatives include [[7z]] and [[Lzip]].

== Format ==
LZMA_Alone files have a 13-byte header.

== Identification ==
There is no signature, and no simple way to identify LZMA_Alone files just by looking at the header. That said, it is common for them to start with bytes <code>5D 00 00</code>.

The <code>lzmainfo</code> utility from XZ Utils can help with identification.

== Specifications ==
* [http://tukaani.org/xz/xz-5.0.5.tar.gz XZ Utils source] → doc/lzma-file-format.txt

== Software ==
* [http://www.7-zip.org/sdk.html LZMA SDK]
* [http://tukaani.org/xz/ XZ Utils]:
** <code>xz</code> (with appropriate options), <code>lzma</code>, <code>unlzma</code>, <code>lzcat</code>
** <code>lzmadec</code>
** <code>lzmainfo</code>
** liblzma
* [[7-Zip]]