You might want to open two files in two separate windows to compare them. Also, if you want to edit two files simultaneously, you need to open them separately. That is why you can change Notepad ...

Install MLatticeABC, a software for predicting lattice parameters a/b/c from a given formula Install Cryspnet, a software to predict the crystal system and space groups from a given formula Download ...

Sometimes I like to open CSV files in zed to take a quick look at the head. When I open a file of e.g. 200MB, opening is never an issue. But when I close a file like this, it will often cause zed to ...