This is a known error. Google knows about it at writeexcel data may have been lost. This was discussed recently in Re: erron in spreadsheet::Write Excel, where a workaround was found.

From comparing the text of erron in spreadsheet::Write Excel to your post, I assume that you are the same person. So why do you think that asking almost the same question five days later will be met with other answers than before?

In reply to Re: warning while opening excel sheet by Corion
in thread warning while opening excel sheet by Anonymous Monk

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