However, you can run two instances of Excel to get this to work. Or you could have an original document shown on one and a marked up version on the other.Įxcel itself won’t let you split it across two screens as a default – it will always display itself all on one screen or the other. emails and administrative work on one screen principle work on the other. Generally, it’s easiest to work with two screens if you have a defined purpose for each: e.g.