Sync'ng with excel

Hi all,

In the company where I work, we're using sharepoint to submit all promotions to our online store. I exported the SP into an Excel file because it makes my life easier rather than checking things online on the same SP. The problem is that I added some columns on that excel file for my own use and every time I click Refresh on the table, all my comments on those columns are removed or randomly moved up&down within the same column. You can see this video for further details: http://screencast.com/t/DbLjZTZNJ

Is there any way to protect those columns?

Thanks so much in advance!

Raul.