Hi, I just found that xlsx-files produced by the latest builds of poi cannot be opened in my version of Excel any more, anybody else have similar problems or is this something related to my local environment?
Even the simplest possible file already is reported corrupt for me, anybody seeing this as well? The files can be read fine by POI itself, 3.9 seems to still work fine, I am still testing 3.10beta1 to narrow it down... Workbook workbook = new XSSFWorkbook(); String filename = "C:\\temp\\poi-bug.xlsx"; FileOutputStream file = new FileOutputStream(filename); try { workbook.write(file); } finally { file.close(); } Dominik.