How do I read an XLSX file with POI?

Reading XLSX File

  1. import java.io.File;
  2. import java.io.FileInputStream;
  3. import java.util.Iterator;
  4. import org.apache.poi.ss.usermodel.Cell;
  5. import org.apache.poi.ss.usermodel.Row;
  6. import org.apache.poi.xssf.usermodel.XSSFSheet;
  7. import org.apache.poi.xssf.usermodel.XSSFWorkbook;
  8. public class XLSXReaderExample.

How do you write POI in excel?

1. Apache POI API Basics for Writing Excel Files

  1. Create a Workbook.
  2. Create a Sheet.
  3. Repeat the following steps until all data is processed: Create a Row. Create Cellsin a Row. Apply formatting using CellStyle.
  4. Write to an OutputStream.
  5. Close the output stream.

How do I create an XLSX file in Java?

To write data into an excel sheet itself using poi :

  1. Create a blank workbook. XSSFWorkbook workbook = new XSSFWorkbook();
  2. Create a sheet and name it. XSSFSheet spreadsheet = workbook.createSheet(” Student Data “);
  3. Create a row. Row row = sheet.
  4. Add cells to the sheet.
  5. Repeat Steps 3 and 4 to write the complete data.

What is XSSF and HSSF?

Overview. HSSF is the POI Project’s pure Java implementation of the Excel ’97(-2007) file format. XSSF is the POI Project’s pure Java implementation of the Excel 2007 OOXML (. xlsx) file format. HSSF and XSSF provides ways to read spreadsheets create, modify, read and write XLS spreadsheets.

How read data from excel using Java POI?

Download and add the following jar files in the lib folder:

  1. commons-collections4-4.1. jar Click Here.
  2. poi-3.17. jar Click Here.
  3. poi-ooxml-3.17. jar Click Here.
  4. poi-ooxml-schemas-3.17. jar Click Here.
  5. xmlbeans-2.6. jar Click Here.

How do you write poi?

Procedure: Writing a file using POI is very simple and involve the following steps:

  1. Create a workbook.
  2. Create a sheet in the workbook.
  3. Create a row in the sheet.
  4. Add cells in the sheet.
  5. Repeat steps 3 and 4 to write more data.
  6. Close the output stream.

How do I write data in Excel?

Setup

  1. Data: Data which we need to write in Excel.
  2. Data store URL: Select Excel workbook from dropdown.
  3. Workbook: Enter workbook path.
  4. Worksheet: Enter worksheet name.
  5. Sheet Mode: Select from three options: Replace the sheet contents, Append to the sheet content or Update the sheet content based on a condition.

How Apache POI read Excel file in Java?

Reading an excel file using POI is also very simple if we divide this into steps.

  1. Create workbook instance from excel sheet.
  2. Get to the desired sheet.
  3. Increment row number.
  4. iterate over all cells in a row.
  5. repeat step 3 and 4 until all data is read.

How do I export data from Java to excel?

How to export data to XLSX file in Java

  1. Step 1: Download and install EasyXLS Excel Library for Java. To download the trial version of EasyXLS Excel Library, press the below button:
  2. Step 2: Create a Java project.
  3. Step 3: Include EasyXLS library into project.
  4. Step 4: Run Java code that exports data to Excel XLSX file.

Does Apache POI support Xlsx?

The Apache POI library supports both . xls and . xlsx files and is a more complex library than other Java libraries for working with Excel files.

Can HSSF read XLSX file?

According to my research, HSSF is used to read xls and XSSF to read xlsx.