You must be use to the way Windows PC's works with files.
On Mac you locate the folder/directory you saved the Presentation Then simply Drag file to Trash and empty.
There are several way to look for PowerPoint Files. All PowerPoint file end in the extension(s):
ppt (Presentation - Format used in Powerpoint 2007/2008 and prior)
p****ptx (Presentation - Format used in PowerPoint 2010-2011 and above)
pps (PowerPoint Show - Format used in Powerpoint 2007/2008 and prior)
ppsx (PowerPoint Show - Format used in PowerPoint 2010-2011 and above)
One Method is use SpotLight simply type .ppt or .pptx or .pps or .ppsx
Another I like better is in go to Finder (window you see when you first open computer).
- Go to file menu.
- Choose Find File.
- When window opens, type one of the extensions it will locate every Presentation you have.
- Choose desired one and put in trash and empty.
(make sure the one you put in trash is the one you want to get rid of because once you go to Trash and empty it. It's gone for good).
There are two Utilities that work faster and I have had no issues with them one is called EasyFind and the other is Tembo. Both use a faster look up system than with Find File or Spotlight.
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NOTE:
Neither I nor Microsoft has any vested interest, in this product. I, or MS (so far as I know),own no stock in the company that author's this utility. I purchased a copy for my own use and find it helpful and for me, it has not done any harm. As with all software, including software from Microsoft, there is always the slight, possibility of buggy or harmful behavior, but this has not done so for me.
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Disclaimer:
The questions, discussions, opinions, replies & answers I create, are solely mine and mine alone, and do not reflect upon my position as a Community Moderator.