I am trying to do something that sounds simple but clearly is not (for me atleast). The simplest way to describe what I am looking for is this:

I have a spreadsheet with columns all the way from A to O. I have column O as a last update column I am currently manually inputing the value constantly and would like some help to solve this.

Each ROW is its own order and so I want to auto update that last cell to show the last date and/or time anything in that single row has changed value. All the columns do not show just numbers, they are half numbers half letters so I am not sure if that makes a difference or not and I rather throw it out there.

I have seen ALOT of theses VBA scripts (sorry if I labeled it wrong, I clearly am not the best in this deep of detail) and I have seen many people say work but I honestly do not have a clue what to do. I read where people say "paste this code in the VBA window" which I can pull up and paste into however whats my next step? How the heck do I confirm this is working? If you can help me please give me the exact steps to make it work, such as delete or dont delete the auto text that pops up in the vba screen, what to press after I paste the code, what part of the code to switch and so on... you can pretend that you are trying to teach this to an 11 year old if it makes it easier to understand just how lost I am here.

hellllllppppP!!!! =)