LandXML specifies an XML file format for civil engineering design and survey measurement data. The primary goals for providing a standard data format are:

• Data exchange between software applications
• Long-term data archival

Hundreds of software developers and government organizations around the world have adopted LandXML. LandXML data types include:

• Points
• Survey measurements
• Alignments
• Profiles
• Cross Sections
• Surfaces
• Parcles
• Pipe Network
• and more...

Visit the official site at LandXML.org.