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openattachmentbyextension:internal error Exception... "Component returned failture code:0x80520012 ....

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openattachmentbyextension:internal error Exception... "Component returned failture code:0x80520012 .... attach screen open *.xls this error open *.xlsx no error open ok

openattachmentbyextension:internal error Exception... "Component returned failture code:0x80520012 .... attach screen open *.xls this error open *.xlsx no error open ok

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That sounds like an error in the add-on open by extension. Perhaps you should raise it with the author