Thank you for your advice - that helped a lot. After making that change, I now get the message: 
Use of uninitialized value in pattern match (m//) at ./ldap2csv.pl lin
+e 58, <$in> chunk 7882.

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for the line 
            $data{$key} =~ s/(^|$)/"/g if $data{$key} =~ /,/;

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I did some troubleshooting and find there is a key of "11" which has no value. That appears to be the result of the line 
        $data{@header} = ();  # To label the data.

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Originally the line was 
@data{@header} = ();  # To label the data.

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and I didn't think that looked right. I tried changing the line back to that. There seems to still be issues but I will try to figure out why all my quoted values start with a comma. I appreciate your help. I wish this wasn't such a hard task.

In reply to Re^2: Parsing ldap attributes into a csv by lvirden
in thread Parsing ldap attributes into a csv by lvirden

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