The selected file does not appear to be a valid Microsoft PowerPoint file. It might be a file created by a different program.

Hi

I have a important PPT file that by saved by a member of a staff and when opened it says PowerPoint cant open this type of file  and gives the location.

If I Click show help is says the following. Is they a way to repair this or recover this PPT file

Thanks and any help will be great.

The selected file does not appear to be a valid Microsoft PowerPoint file. It might be a file created by a different program.
Try double-clicking the file in Windows Explorer to see if another program will open it. If PowerPoint opens again when you double-click the file in Windows Explorer, it is possible that the file is not a PowerPoint file but that its extension was renamed to be that of a registered PowerPoint file type (such as .ppt, .pptx, .pps, .ppsx, .pptx, .pot, or .potx) but the file is not a PowerPoint file.
To determine which program can open the file, try any of the following:
Contact the original author (if known) to find out which program was used to create this file. Then rename the file with the correct extension so that it can be opened by that program.
Try opening the file in other programs.
If you, or someone you know, are very knowledgeable about software, examine the file header in a text editor to determine which program can read the file.
Another possibility is that the file was damaged during transfer from another computer. Try transferring the file again.
The file might have become corrupted. If you have a backup copy of the file, use it. It is not possible repair a corrupted file.
lianne143Asked:
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Jackie ManCommented:
Have you tried to rename the extension of the file to .ppt or .pptx?

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lianne143Author Commented:
When rename  and open , it is asking for repair and if I click yes and open and says cant read  the .ppt

If I click show help , it gives a different message this time..
The presentation cannot be opened. Your antivirus program may prevent you from opening the presentation. To fix this problem, make sure your antivirus program is current and working correctly. If the problem persists and the presentation is from someone that you trust, turn off your antivirus program, and then try to open the presentation again. If you do this, make sure you turn on your antivirus program again after you open the presentation.
Jackie ManCommented:
What is the file size of the problem file?
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