エクセル兄さん Jun Tatebayashi

Jun Tatebayashi is a Japan-based content creator, bestselling author, and corporate trainer turning generative AI into practical productivity tools. As "Excel Aniki" on YouTube, he has 110,000+ subscribers, plus 240,000+ students on Udemy with Benesse.

His book AI Saisoku Shigoto-jutsu has sold 90,000+ copies in Japan; his latest, AI Life Hack (June 2026), has passed 15,000. This year he's been featured in PRESIDENT, Nikkei WOMAN, and Nikkei Trendy, and spoke at the Generative AI Summit.

Born 1986 in Yokohama, Jun learned to automate work with macros during his "triple-hustle twenties." Years of late nights after his two kids fell asleep took a toll on his health, so he rebuilt his workflow around AI, automating tasks one by one to reclaim family time. In 2024 he moved to Japan's Shonan coast, running a fully remote business with his spouse and delivering corporate training to firms including MS&AD Holdings.

His message: the busier you are, the more you need AI working for you.