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: 
  poi-3.11-beta2.jar: http://repo1.maven.apache.org/maven2/org/apache/poi/poi/3.11-beta2/poi-3.11-beta2-sources.jar
  poi-ooxml-3.11-beta2.jar: http://repo1.maven.apache.org/maven2/org/apache/poi/poi-ooxml/3.11-beta2/poi-ooxml-3.11-beta2-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

- Apache Commons Codec: http://commons.apache.org/proper/commons-codec/
  Source Code:
  commons-codec-1.9.jar: http://repo1.maven.org/maven2/commons-codec/commons-codec/1.9/commons-codec-1.9-sources.jar

See also associated copyright information in inst/COPYRIGHTS. 
