Adobe InDesign up to version CC6 did support formats from old PageMaker the latest Creative Cloud version however does not. So you either need to find the original PageMaker, older InDesign or some kind of 3rd party utility that could perform P65 to INDD conversion. As far as we know, there sadly exists no such app.
Convert Adobe PageMaker 6.5 document to Adobe InDesign document.
We found 2 software records in the database related to .p65 to .indd file format conversion.
Microsoft Windows software - convert p65 to indd on Windows
Professional desktop document publishing software from Adobe
Convert from p65 file format
|Yes, Adobe InDesign supports indd file conversion as a target file type.||Yes||Yes||indd editor||Yes||No||No||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned p65 to indd. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert p65 to indd on OS X
Mac version od Adobe's popular document designing and publishing software