I changed .ppp to .mpppi and .ppas to .mpas. And opened the project by calling the .mpppi file. The files were not attached, so I manually added the .mpas and other files.
I don't think it's the right way to begin. There's the Project/Import Project option that should help you to start. Another way is to start new project and add source files to it (after renaming *.ppas files to *.mpas). Then you'll have to configure the processor and start correcting the code for new compiler. And it may prove hard, as I warned before.
I change "unit" to "program" in definitions_ENC.mpas file:
It looks like you're trying to make a project from a library. If you have only the library, not a project (created under old compiler) then create a new project that uses