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You can use Transmit https://panic.com/transmit/ It can do FTP, SFTP, S3 and much much more and all with a nice interface . They have a free trial. Purchased a license myself. Does the job very nicely.
I’ll also recommend using CyberDuck to achieve this. It’s user-friendly and works just fine with DigitalOcean’s Spaces product. You can find more information here:
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