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The maximum number of worksheets is not defined in Excel, but external factors, such as memory and disk space, might causes limitations to be applied. The rest of the cell contents is still within the cell (up to Excel's max number of characters of 32,767).īecause the maximum row height is 409 points, if the defined height of the cell in the report is something larger than 409 points, Excel splits the cell contents into multiple rows. If the contents of the row cause the row height to increase beyond 409 points, the Excel cell shows a partial amount of text up to 409 points. If this is exceeded, the renderer displays an error message. The maximum number of characters in a cell is limited to 32,767. The renderer does not verify that the column width is less than the limit. The maximum column width is limited to 255 characters or 1726.5 points. Microsoft Excel places limitations on exported reports due to the capabilities of Excel and its file formats. For more information about securing reports, see Secure Reports and Resources. To mitigate the risk of inadvertently running malicious scripts, open rendered reports only from trusted sources. If another user then views the report and clicks the rendered parameter contents, the user may inadvertently execute the malicious script or link.
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If a report parameter is not tied to a query parameter and the parameter values are included in the report, it is possible for a report user to type expression syntax, script, or a URL into the parameter value, and render the report to Excel. The Sheet class represents a single sheet, and the Cell class represents a single cell of a spreadsheet.When you define a parameter of type String, the user is presented with a text box that can take any value. The Workbook class represents the entire collection of sheets.
#Excel worksheet file extension 2016 series#
In order to work with Excel files, this library provides a series of classes that represent the different parts of an Excel file. Let's test the above methods in a JUnit test that writes content to the temp.xlsx file and then reads the same file to verify it contains the text we have written: String fileLocation = path.substring(0, path.length() - 1) + "temp.xlsx" įileOutputStream outputStream = new FileOutputStream(fileLocation) Next, let's write the content of the table with a different style: CellStyle style = workbook.createCellStyle() įinally, let's write the content to a “temp.xlsx” file in the current directory and close the workbook: File currDir = new File(".") XSSFFont font = ((XSSFWorkbook) workbook).createFont() tFillPattern(FillPatternType.SOLID_FOREGROUND) tFillForegroundColor(IndexedColors.LIGHT_BLUE.getIndex()) Sheet sheet = workbook.createSheet("Persons") ĬellStyle headerStyle = workbook.createCellStyle() Let's create a method that writes a list of persons to a sheet titled “Persons”.įirst, we will create and style a header row that contains “Name” and “Age” cells: Workbook workbook = new XSSFWorkbook() When the cell type enum value is STRING, the content will be read using the getRichStringCellValue() method of Cell interface: data.get(new Integer(i)).add(cell.getRichStringCellValue().getString()) Ĭells having the NUMERIC content type can contain either a date or a number and are read in the following manner:Īpache POI uses the same interfaces presented in the previous section for writing to an Excel file and has better support for styling than JExcel. Let's expand on the content of each switch case above. Next, let's retrieve the first sheet of the file and iterate through each row: Sheet sheet = workbook.getSheetAt(0) ĭefault: data.get(new Integer(i)).add(" ") Īpache POI has different methods for reading each type of data. Workbook workbook = new XSSFWorkbook(file) First, let's open the file from a given location: FileInputStream file = new FileInputStream(new File(fileLocation))