Excel XLSX XLS to CSV or CSV to Excel using Java

CSVtoExcel.java

// Opening CSV Files
// Creating CSV LoadOptions object
LoadOptions loadOptions = new LoadOptions(FileFormatType.CSV);
// Creating an Workbook object with CSV file path and the loadOptions
// object
Workbook workbook = new Workbook(dataDir + "Book_CSV.csv", loadOptions);
workbook.save(dataDir + "CSVtoExcel.xlsx" , SaveFormat.XLSX);

ExceltoCSV.java

// Load the input Excel file
Workbook workbook = new Workbook(dataDir + "CSVtoExcel.xlsx");

// Save output CSV file
workbook.save(dataDir + "ExcelToCSV.csv" , SaveFormat.CSV);