Is there a way to convert an PowerPoint 2007 *.pptm file to one that is functional in PowerPoint 2013?

I have a customer who created some PowerPoint presentations that utilize macros using PowerPoint 2007.  She needs to access those files and edited them from other computers in her office while presenting them to clients on other computers using PowerPoint 2013.  However, she is unable to edit them using PowerPoint 2013.  Is there a way for her to convert the PowerPoint *.pptm files so that they can be edited in PowerPoint 2013?
lofishmanAsked:
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Michael-BestCommented:
Powerpoint 2007, 2010, and 2013 use the same .pptx files.

To convert pptm see this guide by ehow.com:
http://www.ehow.com/how_6563802_convert-pptm-files-ppt.html
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Echo_SCommented:
What exactly do you mean by, "However, she is unable to edit them using PowerPoint 2013"? Is she trying to use the macros in 2013? She should be able to edit the files in 2013, but the macros may not work. Or I suppose it could be that the macros themselves are preventing editing for some reason, but that seems a bit odd. What do the 2007 macros do?

She might try saving the PPTM as a PPTX to strip out the macros, which should allow her to edit the file as usual in PPT 2013.
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lofishmanAuthor Commented:
M_B: Actually I discovered, *.pptm utilizes macros that don't open normally in Powerpoint 2013.  Does the process you linked to convert *.pptm to *pptx without losing functionality?

Echo_5:  We need those macros to work if we open and edit them using PPT 2013.
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Echo_SCommented:
Converting the PPTM to PPTX will remove the macro functionality.

Can you clarify what you mean by "utilizes macros that don't open normally in Powerpoint 2013"? What doesn't open? The macro or the PowerPoint itself? What exactly happens? It's difficult to troubleshoot something like this without details -- and we can't see your client's screen so we have to rely on a description. Otherwise we're kind of shooting in the dark here.
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lofishmanAuthor Commented:
Echo_S:  When I try to open the PPT 2007 created files with PPT 2013, they are opened in "compatibility mode"  which means they are "read only" and cannot be edited.  Thanks for you reply.
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Echo_SCommented:
Oh. In that case, SAVE AS and choose PPTM.
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Echo_SCommented:
Oh, and you also might have to enable macros in the 2013 trust settings. File | Options | Trust Center | Trust Center Settings | Macro Settings | Enable all macros.

Thing is, if the file is opening in compatibility mode, then it's probably a 2003 file, not a 2007 file. And so the macro still may not work properly.
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lofishmanAuthor Commented:
Hi again,

It look like maybe I was barking up the wrong tree.  The files open correctly when I copy them directly to the PC's hard drive and not as read only.  Therefore it looks like a permissions issue, not a format issue.  Will confirm and get back to you.  Thanks anyway.
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JSRWilsonCommented:
This sounds like it is opening in Peotected Mode. You might want to try right clicking the file > Properties and look for an UNBLOCK button if they were sent by email or downloaded. If the macros changed the presentation and it was opened in protected mode they wouldn't work. You could also turn off protected mode in File > Options > Trust Center > Trust Center settings > Protected Mode. This is a little less secure of course.
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lofishmanAuthor Commented:
I solved my own question.  The problem was different from what I thought it was.
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