editing powerpoint notes with C#

[Nmacgre]

I'm looking for a way to manipulate strings in the notes section of a
powerpoint. For example in the notes section I may have something like
"Hint 1 Audio" and need it changed to "Hint1 Audio" for a LARGE volume
of ppts. Any idea where I should look?

[alandgri]

I can think of two possible methods:

1) Use Visual Studio Tools for Office which allows you programmatic
access to all of the MS Office functionality.

2) Change the extension of a pptx file to a zip file, then unzip it
using any zip utility. This should explode it out into a number of
folders and xml files. You could then find where the particular note
you are wanting to change is exposed in the XML model. Once you have
that, you could very easily write a program to automate all of the
steps for all of your files.