// Excel 2007 이상인 경우
FileInputStream fis = new FileInputStream(new File("파일 경로"));
XSSFWorkbook workbook = new XSSFWorkbook(fis);

// Excel 97 ~ 2003 버전인 경우
FileInputStream fis = new FileInputStream(new File("파일 경로"));
HSSFWorkbook workbook = new HSSFWorkbook(fis);
​```

2. File 객체를 사용하여 읽어들이기

OPCPackage opcPackage = OPCPackage.open(new File("파일 경로"));
XSSFWorkbook workbook = new XSSFWorkbook(opcPackage);
​```

- Excel 내용 얻기

/* 1. row 얻기 : getPhysicalNumberOfRows();
int rows = sheet.getPhysicalNumberOfRows();
for(int r = 0; r < rows; r++){
	..
}
*/

// 2. row 얻기 : iterator();
Iterator<Row> rowIterator = sheet.iterator();
int rowIndex = 0;
while(rowIterator.hasNext()) {
	Row row = rowIterator.next();
	System.out.println(rowIndex + "행 :\n");

	/* 1. cell 얻기 : getPhysicalNumberOfCells();
	int cells = row.getPhysicalNumberOfCells();
	for(int c = 0; c < cells; c++){
		..
	}
	*/

	// 2. cell 얻기 : cellIterator();
	Iterator<Cell> cellIterator = row.cellIterator();
	while(cellIterator.hasNext()) {
		Cell cell = cellIterator.next();

		switch(cell.getCellType()) {
			case Cell.CELL_TYPE_BOOLEAN:
				System.out.print(cell.getBooleanCellValue() + "\t");
				break;
			case Cell.CELL_TYPE_NUMERIC:
				System.out.print(cell.getNumericCellValue() + "\t");
				break;
			case Cell.CELL_TYPE_STRING:
				System.out.print(cell.getStringCellValue() + "\t");
				break;
			case Cell.CELL_TYPE_FORMULA:
				System.out.print(cell.getCellFormulaCellValue() + "\t");
				break;
		}// switch
	}// while
	System.out.println("");
}// while }// for ​```