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I'm trying to create some xlsx files using the Apache POI library for Java and everything to create the files is working fine. The problem comes when I want to print those files using a physical printer. I want to make each sheet in my workbooks fit to a single page. I looked around in the documentation and the following code would be supposed to work: XSSFWorkbook wb = new XSSFWorkbook(); XSSFSheet sheet = wb.createSheet("format sheet"); PrintSetup ps = sheet.getPrintSetup(); sheet.setAutobreaks(true); ps.setFitHeight((short)1); ps.setFitWidth((short)1); for(int i = 0; i < 100; ++i){ sheet.createRow(i); sheet.getRow(i).createCell(0).setCellValue("Test " + i); } FileOutputStream output = new FileOutputStream("Test.xlsx"); wb.write(output); output.close(); But it doesn't... When I try to print it, it prints to three sheets (what it would actually be supposed to print on if I didn't use the PrintSetup part). So the code just doesn't do anything at all. Can anyone tell me what is wrong with that code? Also, I have another question about printing xlsx files: I want to know if there's a way to print the xlsx files from my Java program without actually opening the files and clicking on print? Like wb.printAllSheetsInWorkbook(); or something like that.

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