From 9e446ecb326c25322281fe05a073e7b3f053294e Mon Sep 17 00:00:00 2001
From: Ramtin Vaziri <ramtin_vaziri@mckinsey.com>
Date: Sun, 8 Mar 2020 17:46:32 -0400
Subject: [PATCH] [ creek ] #88 fixed.

---
 lib/creek/styles/converter.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/creek/styles/converter.rb b/lib/creek/styles/converter.rb
index 391861a..6a5acff 100644
--- a/lib/creek/styles/converter.rb
+++ b/lib/creek/styles/converter.rb
@@ -6,7 +6,7 @@ class Converter
       include Creek::Styles::Constants
 
       # Excel non-printable character escape sequence
-      HEX_ESCAPE_REGEXP = /_x[0-9A-Za-z]{4}_/
+      HEX_ESCAPE_REGEXP = /_x[0-9A-Fa-f]{4}_/
 
       ##
       # The heart of typecasting. The ruby type is determined either explicitly