So I am new to PS and have been tasked with updating all staff accounts with new IP Phone extensions. I do not want to hand jam all the new extensions. IS there a fairly easy script to run that I can use to import a csv with Usernames and ipphone extensions?
Did you try to search for it? … there are thousands you can use as a template for yourself.
If you’re still new to Powershell you might take your time and start to learn the very basics of Powershell from scratch. That might even avoid a lot of wasted time and frustration and maybe some failure when you work on an Active Directory. You could watch the free video course at the Microsoft Virtual Academy - Getting Started with Powershell.