A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
I don't have any problems with the file so I am assuming that the problem is with your Excel or another file on your computer that is accessing it.
If you have saved as a csv and then closed the file and closed Excel and then re-opened then the workbook should be clean. On the surface it would appear that you have another problem with your Excel installation. However, you say this does not occur with other excel files so I don't think I can help any further.
In a previous post you said that you could not move the worksheet to another workbook because a workbook must have at least one sheet. This would have been due to attempting to move the last worksheet out of a workbook which would have left the source workbook with no worksheets. If you only have one worksheet in a workbook then if you want to move it out then add another sheet to the workbook first. (Doesn't matter if it is a blank sheet just so long as the workbook is left with a worksheet in it). Alternatively check the box to "Create a copy" so that the worksheet is not moved out but a copy is made in the new workbook.