Read an Excel file and return a double array

Excel.java

// Dependencies: POI | HSSF Workbook/Sheet/Row/Cell
// This method will read and return Excel data into a double array
public static String[][] get(String filename) {
	String[][] dataTable = null;
	File file = new File(filename);
	try {
		// Create a file input stream to read Excel workbook and worksheet
		FileInputStream xlfile = new FileInputStream(file);
		HSSFWorkbook xlwb = new HSSFWorkbook(xlfile);
		HSSFSheet xlSheet = xlwb.getSheetAt(0);

		// Get the number of rows and columns
		int numRows = xlSheet.getLastRowNum() + 1;
		int numCols = xlSheet.getRow(0).getLastCellNum();

		// Create double array data table - rows x cols
		// We will return this data table
		dataTable = new String[numRows][numCols];

		// For each row, create a HSSFRow, then iterate through the "columns"
		// For each "column" create an HSSFCell to grab the value at the specified cell (i,j)
		for (int i = 0; i < numRows; i++) {
			HSSFRow xlRow = xlSheet.getRow(i);
			for (int j = 0; j < numCols; j++) {
				HSSFCell xlCell = xlRow.getCell(j);
				dataTable[i][j] = xlCell.toString();
			}
		}
	} catch (IOException e) {
		System.out.println("ERROR FILE HANDLING " + e.toString());
	}
	return dataTable;
}