Hi Welcome to JustAnswer.com. My name is R. Michael and I have a possible workaround.
Create a new blank Power Point and Insert the slides from the original presentation
File-->New Blank Presentation
Click Insert > Slides from Files
Browse for your File and then insert them one by one** (repeating the insert step) after reducing the slide size with suggestions in link below.
The following link has some excellent ideas for reducing PowerPoint sizes.
It may be a little bit of extra leg work but at least you should be able to recover your slides.
**Depending on the size of the slides "one by one" may not be necessary. You may be able insert more that one at a time before reducing slide size and continuing to insert.
The problem being:
How can you transfer slides from the existing file,
when you cannot open that file?
When you click on the existing file this is what the window says:-
'Powerpoint cant read c:/documents and settings/fred/desktop/presenting ppoint book launch ppt.
I can create a new blank presentation - but cannot open this file to do transfer of the slides.
Yes! I can try to zip the file for uploading.
How do I do this?
I not sure on how to go about it!
1.) Navigate to the folder the file is stored
2.) Right click the file
3.) Send To--Compressed (zipped) folder
Once zipped you will see a new folder usually with the same name as the file and the file will be in that new zipped folder.
See Screen Shot below
Attachments are only available to registered users.
I have downloaded winzip.
The problem is when I click on Desktop where the ppt file is - it does not show-up in the winzip window.
So, I tried it from a USB but the result is the same it doesn't show up in the file selection window ( even though I know the file is stored there)
I could Airmail a USB to you (that would take about 7-days). I can't send a CD because the file is too large.
Or do you have another suggestion?
Okay trying your suggestion.
As a note:-
I opened Winzip on the desktop and dragged and dropped the ppt file into it. It compressed it a little.
'space savings 126.70 Mb 12%
I then clicked on 'save as' retitled it and saved.
The file said it was opening ppt ...but after about 30 seconds a window came up...
'powerpoint cannot read the document etc...'
I tried your suggestion.
In that window it gives you a choice of the following options:-
Created Wed, 7 Nov 2012 3.07.17 pm
Modified Wed, 5 Dec 2012 10.08.59 am
Accessed today 10 Dec 2012 9.27.56 am
(under neath that box)
Read Only Hidden Advanced
Don't know about you but I think I will have to write this file off.
Begin all over. Thanks for your efforts!
Is wonder if there is an updated version available in powerpoint? It has to be able to run on XP.
Okay one last try...then give-up Tks