xlsjs_node_demo.js

/* 
 * js-xls demo in node
 *
 * formula_stress_test.xls can be found in: 
 * - test_files subdirectory of the repo
 * - in the test files repo: https://github.com/Niggler/test_files/blob/master/formula_stress_test.xls?raw=true
 * 
 * for more info, look at the sheet_to_csv and get_formulae functions as well as the xls2csv script
 */
 
/* Desired file name and sheet */
var filename = 'formula_stress_test.xls';
var target_sheet = 'Database';

/* Read workbook */
var XLS = require('xlsjs');
var workbook = XLS.readFile(filename);

/* workbook.SheetNames is a sorted array of the names of the sheets */
if(workbook.SheetNames.indexOf(target_sheet) === -1) throw "Could not find " + target_sheet + " in " + filename;

/* workbook.Sheets is an object whose keys are the sheet names and whose values are the sheet data */
var worksheet = workbook.Sheets[target_sheet];

/* the '!ref' key in worksheet is an A1-style rendering of the worksheet range (region containing every nonempty cell */
console.log(target_sheet + " range is " + worksheet['!ref']);

/* the '!range' key is a parsed version of '!ref', with keys 's' for the start coordinates and 'e' for end */
var range = worksheet['!range'];
console.log("There are " + (range.e.r-range.s.r+1) + " rows and " + (range.e.c - range.s.c + 1) + " columns.");

/* The keys of worksheet that don't start with "!" are A-1 type cells */
var cell = worksheet['B9']; 

/* print out cell information */
console.log(
  cell.v, /* value */
  cell.t, /* type ('n'=number, 'b'=boolean, 's'/'str'=string, 'e'=error) */
  cell.f /* formula */
);

/* Loop across every cell in the worksheet and print */
for(var R = range.s.r; R <= range.e.r; ++R) {
  for(var C = range.s.c; C <= range.e.c; ++C) {
    /* Get the A-1 representation for the current row+col */
    var address = XLS.utils.encode_cell({c:C,r:R});
    /* Get the cell (if the cell has not been set, this will be undefined) */
    cell = worksheet[address];
    if(typeof cell === "undefined") continue;
    console.log("r="+R,"c="+C,"address="+address, cell);
  }
}

/* Parse a text representation of a range (like A3:B7) */
range = XLS.utils.decode_range('A3:B7');

/* Generate the text representation of a range */
var start_cell = {r:1,c:2};
var end_cell = {r:3,c:4};
range = {s:start_cell, e:end_cell};
console.log(
  XLS.utils.encode_cell(start_cell), 
  XLS.utils.encode_cell(end_cell), 
  XLS.utils.encode_range(range)
);

@rinatio it's possible :) On the todo list

@Niggler awesome, thanks! Watching your repo :)