XMLSpreadsheetGenerator - Java library that writes XML spreadsheet documents according to Excel 2003 specification
Simple Java implementation of the XML spreadsheet document specification by Microsoft. Similar to SXSSF in its streaming design; the Generator will flush to the output everything that is written into it, in real time, keeping in memory just a narrow output buffer for performance. The library idea is to have a constant memory consumption, independently of the size of the spreadsheet that we are building - an interesting feature for a web app with a limited and predefined memory heap
Latest binary at https://github.com/jorgeb1980/XMLSpreadsheetGenerator/releases/latest