Software, network and database developers may often deal with XML (Extensible Markup Language) format of files. But in Windows, the default program used to open and view an XML file is the IE browser, so that we can only see the hard-to-read and elusive source code of XML file with IE. Although the format of the XML language itself is very neat, IE or Notepad can not meet our needs for quickly viewing, filtering and editing the data, code in a XML file.

The operation and maintenance of websites or web services can't do without checking and analyzing the server logs. For this, many webmasters or administrators may have the very powerful and professional log analyzing tool from Microsoft - logparser (AKA: Log Parser, Microsoft Logparser) in mind. But Microsoft Logparser's command line interface can be a daunting challenge for many non-professional managers. Thereupon, some enhanced GUI tools for Microsoft Logparser such like Visual Log Parser GUI, Log Parser Lizard appeared.