Open XML Editor edits XML documents and has a XML tester and a DTD validator.
The Open XML SDK simplifies the task of manipulating Open XML packages .
Defines a set of XML schemes for representing spreadsheets and charts.
A good and user-friendly tool for editing and testing and debugging PHP scripts.
SyncRO Soft SRL
Edit XML files, and connect with XML databases and content management systems.
It is a strictly validating DocBook, DITA, MathML, XHTML and XML editor.
Discovery Open-Source Development Group
Allows you to create, edit and synchronize subtitles for video files.
XMLFox Visual Studio XML Editor is the best XML editor for years.
First Objective Software, Inc.
High performance text editing and parsing XML files.
Richard Wuerflein, Dipl.-Wirt.-Inf. (FH)
View XML well structured and clearly, modification is made easy by various editing features.
Allows you to view and edit Open XML directly from within the Word 2007.
A tool that converts Office Open XML templates to Office Open XML documents.
Open, View, Edit, and Save PDF Files. Image Writer and PDF Tools.
Alexis Lorca Pizarro
Allows you to use Winword97 or WinWord2000 as your Palm documents editor. Open/Edit/Save your Winwor....
Open, play, edit MPEG-1/2/4, MOV, DV, AVI, save or encode to MOV, DV, AVI, MPEG-4 (iPod and 3GP), co....
SMART Technologies ULC
Enables educators to open, edit, save and share notebook files.
Open documents, edit and save to the correct location in SharePoint.
Vertically append many XML files. Save result as a new file.
b2xtranslator allows you to turn an Office binary file into an Open XML file.
FictionBook is an open XML-based e-book format, popular in Russia.