Bug or user with XML and Calc

[Helfgott]

Hi guys.

Today i faced a "problem" with Open Office Calc 3.3.0 in Windows XP / Windows Server 2003:
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The problem:
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Try to open an XML file saved as "filename", that means, without extension or "filename.xlm" with *.xml extension.
Open Office Calc just shows a blank/empty spreadsheet, nor errors or warnings.
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Facing the problem
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I found this statement in the file:

<x:WorksheetOptions> </x:WorksheetOptions>

If you delete this statement, file is readed but no formated.
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Solution
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Save the file as filename.xls it works like a charm.

I saved a copy of the procedure in my blog http://asdfg.com.ar/wordpress/xml-en-open-office-calc-abre-en-blanco-pero-tiene-datos/ (spanish) for reference.
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Aditional Question
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Anyway, is it a bug of Oo 3.3.0? maybe i need to enable some option? I tested same in several computers (almost 5) including Windows XP and Server 2003.

**EDIT: Btw, i tested this in Ubuntu with Oo 3.2 and at least it shows you a Input / Output error




Thanks in advance.
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I like Open Source Stuff, just like you.

[Villeroy]

Since Excel-XML is rather outdated and this project has far more consumers and complainers than contributors, nobody will ever write a better XML import filter for Excel specific XML.
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Rest in peace, oooforum.org
Get help on http://forum.openoffice.org

[Helfgott]