From 8d0692397bf29b0059846d5e2f94a62e20525ba2 Mon Sep 17 00:00:00 2001
From: MarkBaker <mark@lange.demon.co.uk>
Date: Sat, 13 Feb 2021 22:08:22 +0100
Subject: [PATCH] Additional Office 365 functions for Excel added in 2020

---
 src/PhpSpreadsheet/Writer/Xlsx/Xlfn.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/PhpSpreadsheet/Writer/Xlsx/Xlfn.php b/src/PhpSpreadsheet/Writer/Xlsx/Xlfn.php
index c322dfc7..c88ef245 100644
--- a/src/PhpSpreadsheet/Writer/Xlsx/Xlfn.php
+++ b/src/PhpSpreadsheet/Writer/Xlsx/Xlfn.php
@@ -140,6 +140,11 @@ class Xlfn
         . '|unique'
         . '|xlookup'
         . '|xmatch'
+        . '|arraytotext'
+        . '|call'
+        . '|let'
+        . '|register[.]id'
+        . '|valuetotext'
         . ')(?=\\s*[(])/i';
 
     /**