Question Can I partition an external hard drive for Xbox and PC usage?

Jan 9, 2019
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So my brother has an Xbox one 500 GB. he is going to save up for a 3TB WD external hard drive, but he wanted to use it for bother xbox and media usage on his Macbook. Can he partition the External hard drive where he can use 1TB for his xbox, and then when plugged into his Macbook, use the other 2TB ?