You should be able to import older Harvard presenations (PRS format) to Corel Presentations and resave them, even to a template. However, you probably won't be able to get much of out the PRS format.
Convert Harvard presentation file to Corel Presentations master template file.
We found one software available in the database for this conversion.
Microsoft Windows software - convert prs to mst on Windows
A presentation graphics application from Corel WordPerfect Office
Convert from prs file format
|Yes, Corel Presentations supports mst file conversion as a target file type.||Yes||Yes||mst editor||Yes||No||No||No|
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.