Error Importing existing customers to Shopify using csv file

I'm trying to change my customer's address by using bulk CSV import/export way.

I tried on one of my existing customers. However, the result shows a failed import. May I know what may be the problem as I think the steps are quite straightforward. I've attached the steps as below.

1. export csv files

2. edit in excel. here I change the address only a bit.

3. upload the files by the import

4. error message.

This customer is active in my shop. is it that I cannot edit an active customer or any condition that must be fulfilled in order to update? Thanks for any response.

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