How can I convert files with extension .ch3 to PowerPoint?

[Flodur]

I have some presentation slides prepared in Harvard Graphics with file
extension .ch3. Is there any device that would allow me to open these files
in PowerPoint 2003?

 

[Flodur]

Thanks for your information. Indeed, using past versions of PPT I was able
to access the files with .ch3 extensions. However, I no longer have access
to older versions of PPT. I have "zipped" the files that I have on two
floppy discs. The size of the two zipped files is 135KB and 137 KB
respectively. Each file contains about 100 .ch3 files of single charts. Can
you help?

Best regards,

Rudolf (Flodur) Abel

 

[TonyT]

I have some presentation slides prepared in Harvard Graphics with file
extension .ch3. Is there any device that would allow me to open these files
in PowerPoint 2003?

Sorry if I posted this twice. I'm new here. I did this 2 years ago
for a client but I had to by Harvard Graphics for Windows. It opened
the CH3 files than it could save them as ppt's. I missed the old dos
version of HG it was PowerPoint before PowerPoint!

Tony T