JEuclid has built-in support for:
You may load either an XML file (.xml, .mml) or an OpenDocument Formula file (.odf) directly in all JEuclid applications.
This depends on the version of Java you are using. All image types supported by ImageIO are supported in JEuclid by default.
Additional Image plugins will be picked up from the classpath. The full distribution includes FreeHEP and Batik.
By adding any ImageIO compatible plugin to your classpath. An example is