JExcel is a library for integrating Microsoft Excel into Swing applications and for working with Excel workbooks and worksheets from Java programs.

JExcel functionality can be divided into the following main parts:Automation of an Excel application, workbooks, worksheets, etc. This is the core functionality of the JExcel library that allows working with Excel applications, workbooks, worksheets, ranges and cells.

Embedding a workbook in a Java Swing application. JExcel provides the JWorkbook component that allows embedding an Excel workbook in a Java Swing application as an ordinary Swing component.

Handling Excel workbook or worksheet events. Workbook and Worksheet JExcel classes allow adding listeners for events generated by a workbook or worksheet and event handlers to affect the application behavior.