Super naive question from a yet-to-be entrepreneur but I was wondering if you used a specific software or Microsoft words will do just fine?

I was also wondering where i could find some examples of business plans (actual ones and not the ones i was given in college lmao)

Also, are there any conventional structures when it comes to business plans or the more blend and straight to the point the better? My classmates used to put a lot of colours and flashy icons. Is it the way to go?

Cheers,