Advance Encryption might be in use...

[kylestamler]

Hello, I am a Mac user with OS X (10.4 Tiger) and I recently acquired
Microsoft Office 2004 for Mac. I have been trying to open some .ppt
files that were created on a PC in PowerPoint for Mac, and I get the
message:

"This PowerPoint may use advanced encryption that is not supported by
Microsoft PowerPoint 2004 for Mac. Ask Author to save as type
PowerPoint '97 - 2003, & '95".

I thought maybe I should try to open the file as Read Only, as this
is how I have to open it on PCs, but that did not solve the problem.
My question is this: Will re-saving the file on a PC as file-type
PowerPoint '97-2003, & '95 really solve this problem, as PowerPoint
2003 for PC is the latest PowerPoint available, and PowerPoint 2004 for
Mac is supposed to be able to open these files?

Thanks

 

[Steve Rindsberg]

Hello, I am a Mac user with OS X (10.4 Tiger) and I recently acquired
Microsoft Office 2004 for Mac. I have been trying to open some .ppt
files that were created on a PC in PowerPoint for Mac, and I get the
message:

"This PowerPoint may use advanced encryption that is not supported by
Microsoft PowerPoint 2004 for Mac. Ask Author to save as type
PowerPoint '97 - 2003, & '95".

I thought maybe I should try to open the file as Read Only, as this
is how I have to open it on PCs,

It sounds as though the file has a Modify password applied.

Try contacting the author; for starters, I'd skip the "PowerPoint 97-yadayada"
and ask them to save you a copy w/ no password applied.



but that did not solve the problem.

My question is this: Will re-saving the file on a PC as file-type
PowerPoint '97-2003, & '95 really solve this problem, as PowerPoint
2003 for PC is the latest PowerPoint available, and PowerPoint 2004 for
Mac is supposed to be able to open these files?

Thanks

================================================
Steve Rindsberg, PPT MVP
PPT FAQ: www.pptfaq.com
PPTools: www.pptools.com
================================================

 

[Jim Gordon]

Hi,

To add to Steve's comments...

Mac Office does not support "signed code" or office files with digital
certificates. If the presentation has a digital certificate it won't
open on a Mac.

Ask the sender to provide an unsigned version to you. All the
certificate does is guarantee that the provider of the presentation is,
in fact, who it claims to be. Since you can probably trust that the
provider of the presentation is really who provided it to you then the
certificate does nothing of value in your case and can be safely omitted.

-Jim Gordon
Mac MVP