Hi! I'm desperately searching for hints as to what could break my Excel::Writer::XLSX created files :(

When I'm running my Dancer based webapp on my local system, everything is fine when it comes to downloading the Excel file created in my webapp using Excel::Writer::XLSX.

But when I access the very same app, using the same strawberry perl, but running on my production system, the resulting files are broken and Excel tells me: (sorry, in german) 

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<recoveryLog xmlns="http://schemas.openxmlformats.org/spreadsheetml/20
+06/main">
    <logFileName>error025880_01.xml</logFileName>
    <summary>Fehler in Datei 'C:\myfile_2014-06-20_15-58-02.xlsx'</sum
+mary>
    <repairedRecords summary="Die folgenden Reparaturen wurden durchge
+führt:_x000d__x000a__x000d__x000a_">
        <repairedRecord>Reparierte Datensätze: Zellinformationen von /
+xl/worksheets/sheet1.xml-Part</repairedRecord>
    </repairedRecords>
</recoveryLog>

[download]

Excel could repair - at least it tells me so, but still the data is not exactly as I wrote it. For example the dates are not displayed as YYYY-MM-DD but just as a number.

I'm desperately searching for any hint what could cause the problem or better how to fix it.

s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
+.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e

In reply to Excel::Writer::XLSX files are broken by Skeeve

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