You cannot save a workbook that contains an image that was copied from another workbook in Excel 2010 - Microsoft Support

Symptoms Consider the following scenario: You copy an image in a previously saved Excel 2010 workbook (.xlsx). You paste the image into another workbook (.xlsx). You close the first workbook. You try to save the workbook that contains the pasted image. In this scenario, you cannot save the workbook, and you receive the following error message: Errors were detected while saving '[path\Filename]'. M

[gambol]

”この現象を回避するには、コピー元のブックを閉じる前に、コピー先のブックを保存してください。”