3960 FieldWorks Language Explorer FWData XML Text (Mark-up) FWData is a XML data format native to FieldWorks Language Explorer (FLEx), an application for recording and analysing information relating to languages and cultures. 244 Preservica / Preservica 02 Dec 2025 v.122: new signature. Submitted by Preservica, with data provided by the Endangered Language Archives; v.123: priority added over fmt/101 Extensible Markup Language 1.0. Submitted by Preservica. 09 Jun 2026 fmt/2085 PUID fwdata File extension 3448 FieldWorks Language Explorer FWData XML XML declaration, ‘languageproject’ top level tag with version parameter. 1 Absolute from BOF 0 0 3C3F786D6C2076657273696F6E3D22312E302220656E636F64696E673D227574662D38223F3E(0D|0A|0D0A)3C6C616E677561676570726F6A6563742076657273696F6E3D Has priority over 638 Extensible Markup Language