From 85bcbf7c3273efae2e9a96292a413c0660cb0048 Mon Sep 17 00:00:00 2001
From: Rory McGuire <rjmcguire@gmail.com>
Date: Wed, 25 Jan 2017 13:48:13 +0200
Subject: [PATCH] support custom format dates such as "[$-409]mmm\-yy"

---
 xlsx.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/xlsx.js b/xlsx.js
index 04b0bc9..75b970f 100644
--- a/xlsx.js
+++ b/xlsx.js
@@ -7231,7 +7231,12 @@ function get_cell_style(styles, cell, opts) {
 function safe_format(p, fmtid, fillid, opts) {
 	try {
 		if(p.t === 'e') p.w = p.w || BErr[p.v];
-		else if(fmtid === 0) {
+		else if (p.t=='n' && fmtid >= 164) {
+			p.t = 's';
+			p.v = SSF.format(fmtid,p.v,_ssfopts);
+			// p.w = p.v;
+			// console.log('p.w', p);
+		} else if(fmtid === 0) {
 			if(p.t === 'n') {
 				if((p.v|0) === p.v) p.w = SSF._general_int(p.v,_ssfopts);
 				else p.w = SSF._general_num(p.v,_ssfopts);