Horiuchi even dabbled with Microsoft Word, but found it to be too restrictive in its paper sizing.
There is far more freedom for the artist to expand on his pieces in Excel.
Having gained worldwide praise over the last few years, Horiuchi has now caught the attention ofGreat Big Story.
The artist invited GBS into his home, offering a behind-the-scenes look at his process.
77-year-old Japanese artist Tatsuo Horiuchi chooses to paint with Microsoft Excel.
His colorful creations are remarkable works of art.
Watch as Horiuchi invites Great Big Story into his home for a behind-the-scenes look at his process.
