datastructures-xslx is composed of the following works jxl https://sourceforge.net/projects/jexcelapi/ GNU Library or Lesser General Public License version 2.0 (LGPLv2) with the log4j dependency removed and com.incesoft.tools.excel https://code.google.com/archive/p/sjxslx/ -> https://github.com/davidpelfree/sjxlsx License: Apache License 2.0 The code will be refactored to the org.xbib package group.