My uncle, who owns a successful website that sells tickets asked my dad if I had basic knowledge of computers.?

He said It has nothing to do with IT or programming. He’s going to call me in the morning to talk. I am a little nervous, even though it’s my uncle, because this can be a great opportunity for me. I don’t want to disappoint, can anyone tell me what it possibly is so that I can prepare for it? Could it be something with excel spreadsheet or..? I know it’s a stupid question but if anyone has ideas I’d appreciate it.