Translation Memory eXchange

Translation Memory eXchange (TMX) is an XML specification for the exchange of translation memory (TM) data between computer-aided translation and localization tools with little or no loss of critical data.
TMX was originally developed and maintained by OSCAR (Open Standards for Container/Content Allowing Re-use), a special interest group of LISA (Localization Industry Standards Association), and first released in 1997. Specification 1.4b of 2005 remained current . It allows the original source and target documents to be recreated from the TMX data. A working draft of TMX 2.0 was released for public comment in March 2007 but no work was done on the new version; in March 2011 LISA was declared insolvent and as a result its standards were moved under a Creative Commons license and the standards specification relocated.
TMX forms part of the Open Architecture for XML Authoring and Localization (OAXAL) reference architecture.
Example.
An example of a TMX document with one entry:
<tmx version="1.4">
 <header
 creationtool="XYZTool" creationtoolversion="1.01-023"
 datatype="PlainText" segtype="sentence"
 adminlang="en-us" srclang="en"
 o-tmf="ABCTransMem"/>
 <body>
 <tu>
 <tuv xml:lang="en">
 <seg>Hello world!</seg>
 </tuv>
 <tuv xml:lang="fr">
 <seg>Bonjour tout le monde!</seg>
 </tuv>
 </tu>
 </body>
</tmx>