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-rw-r--r--lib/Spreadsheet/ParseXLSX/Decryptor.pm2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Spreadsheet/ParseXLSX/Decryptor.pm b/lib/Spreadsheet/ParseXLSX/Decryptor.pm
index 660a544..7870685 100644
--- a/lib/Spreadsheet/ParseXLSX/Decryptor.pm
+++ b/lib/Spreadsheet/ParseXLSX/Decryptor.pm
@@ -25,6 +25,8 @@ sub open {
['EncryptionInfo', 'EncryptedPackage']
);
+ return unless $infoFH;
+
my $buffer;
$infoFH->read($buffer, 8);
my ($majorVers, $minorVers) = unpack('SS', $buffer);