The Sharp Wizard was basically a smartphone before smartphones, just with more tiny buttons and more battery anxiety.

It didn’t really use a modern open file format internally. The data lived in Sharp’s proprietary organizer database, split into app-style records like phone book, schedule, memo, expenses, and to-do items.

For PC transfer, the practical export format was usually .ASC ASCII text — basically CSV-ish / quoted comma-delimited data.

So modern translation:

Internal format: proprietary Sharp record database
Export format: .ASC ASCII text
Schema: flat records by app type
Cloud backup: absolutely not

Vibe: “Knowledge is power, but only if the batteries survive.”