Is more than one way. https://www.google.com/search?q=contact+list+from+Yahoo+Mail+to+GMail finds methods that creates a CSV file so your contacts are now backed up without removing them from Yahoo.
Are you reporting these methods all fail?
I would like to export my contact list from Yahoo Mail to GMail. Can anyone provide instructions on how to accomplish this task. I do not want to remove the contacts from the Yahoo account. Thanks

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