From 7c83b2cf1ae86f7ee0149631e62841023baa9797 Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Wed, 5 Jun 2013 12:58:26 -0500
Subject: don't require the contents field if a formula is given

---
 lib/Spreadsheet/Template/Writer/Excel.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/Spreadsheet/Template/Writer/Excel.pm b/lib/Spreadsheet/Template/Writer/Excel.pm
index 25efe99..84e2a42 100644
--- a/lib/Spreadsheet/Template/Writer/Excel.pm
+++ b/lib/Spreadsheet/Template/Writer/Excel.pm
@@ -214,7 +214,9 @@ sub _write_cell {
             $row, $col,
             $data->{formula},
             (defined $format ? ($format) : (undef)),
-            $data->{contents},
+            (defined $data->{contents}
+                ? ($data->{contents})
+                : ()),
         );
     }
     else {
-- 
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