There are two levels of Microsoft PowerPoint password protection, one to open the presentation and one to enable making changes to presentation. Let's check both of them.
If you are using the same entries all over again, you can create a custom list with these entries and when you need it just enter the first one then drag the cell down for the rest to fill out automatically.
You will find out how to summarize cells that have a same color of the font, the red one in my case. Really useful when working with different types of specific data in Excel.