Answer:
Nmap
Step-by-step explanation:
Nmap is an open-source network scanner originally made for Linux (but then ported to Windows, macOS, and even BSD) created by Gordon Lyon (or alternatively known by his online moniker, Fyodor Vaskovich.)
First of all, Microsoft Excel is a spreadsheet making software. It's not going to be able to scan networks.
Adobe Photoshop is a photo editing program. That's not going to be able to scan networks either.
And Mozilla Firefox is a web browser. The only networks that's going to be scanning are the ones it connects to (to access webpages).
I hope this helps you!