MOM-CA uses the [eXist Native XML database](http://exist-db.org/) as its XRX application server. The source code extending or patching the eXist application server is located under [my/eXist](../tree/master/my/eXist).
MOM-CA uses and in some parts extends the [eXist application server](http://exist-db.org/). The source code extending or patching eXist is located under [my/eXist](../tree/master/my/eXist). eXist provides an interface to write custom XQuery modules extending the function library. Following this , MOM-CA implements a custom XQuery modules:
* an Excel module for the conversion of Excel sheets into XML
