Import/export for Claiming Listings

Hi. I just installed “Claim Listings.” I would like to set most of my current listings to be already claimed, based on their current authors. I see a new “claimed” field in the listing import/export CSV. It appears to be “1” for listings that are claimed by the author and blank otherwise. To claim listings in bulk, can I simply export my listings, put a “1” in this field as needed, and re-import? Does that have an adverse effect on the “Listing Claims” tab in my “Listings Claims” admin console? I just want to know that my database won’t break if I directly edit the “claimed” field in this way.

Thanks for your help