#Microsoft excel spreadsheet series#

The Sheet class represents a single sheet, and the Cell class represents a single cell of a spreadsheet. The Workbook class represents the entire collection of sheets.

#Microsoft excel spreadsheet 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 in 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()

The VLOOKUP formula will check the name column in worksheet one and. tFillPattern(FillPatternType.SOLID_FOREGROUND) Microsoft Excel is a popular tool for managing data and performing data analysis.

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 the 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))