spreadsheet

Apache POI - Java API To Access Microsoft Format Files

JExcelApi is a java library which provides the ability to read, write, and modify Microsoft Excel spreadsheets.

easyexcel is a excel handle tools written in Java

Seam Excel

Streaming Excel reader

jXLS is a small and easy-to-use Java library for generating Excel files using XLS templates

Small library for Excel generation based on XLS templates

Module for some basic SpreadSheet support.

Streaming Excel reader

XLSX/XSL data reading/writing.