XLConnect sources can be obtained from GitHub:

- XLConnect R Package: https://github.com/miraisolutions/xlconnect
- XLConnectJars R Package: https://github.com/miraisolutions/xlconnectjars
- XLConnect Java Sources: https://github.com/miraisolutions/xlconnect-java


Sources for other open source software components can be obtained from the corresponding project websites or source code repositories:

- Apache POI: http://poi.apache.org/
  Source Code:
  ooxml-schemas-1.3.jar: http://repo1.maven.org/maven2/org/apache/poi/ooxml-schemas/1.3/ooxml-schemas-1.3-sources.jar

- Apache XMLBeans: http://xmlbeans.apache.org/
  Source Code:
  xmlbeans-2.6.0.jar: http://repo1.maven.org/maven2/org/apache/xmlbeans/xmlbeans/2.6.0/xmlbeans-2.6.0-source.jar

- Apache Commons Codec: http://commons.apache.org/proper/commons-codec/
  Source Code:
  commons-codec-1.10.jar: http://repo1.maven.org/maven2/commons-codec/commons-codec/1.10/commons-codec-1.10-sources.jar
  
- Apache Commons Collections: http://commons.apache.org/proper/commons-collections/
  Source Code:
  commons-collections4-4.1.jar: http://central.maven.org/maven2/org/apache/commons/commons-collections4/4.1/commons-collections4-4.1-sources.jar

- Joda-Time: http://www.joda.org/joda-time/
  Source Code:
  joda-time-2.3.jar: http://repo1.maven.org/maven2/joda-time/joda-time/2.3/joda-time-2.3-sources.jar
  
See also associated copyright information in inst/COPYRIGHTS.
