You open a file that has a .PPD extension by running the application that created the file. There are at least three different common applications that use the .PPD extension, but anyone can use any extension when they create a file. If it’s your file, you should know what to do with it. Tell us how the file was created or where it came from, and we can possibly give an idea what to do with it. Or you can search for the extension on the internet, install each potential application and see if any of them work. — Tom
Welcome to ITKE, delboy87! Here’s a great definition from WhatIs.com that should point you in the right direction.
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The major problem with the Whatis.com definition is that it ignores the possibility of it being an ArcSoft PhotoImpression project file or a Polar ProTrainer person data file, both of which use the .PPD extension, as do some other programs (including Notepad). It also doesn’t describe how to open such files nor what to actually do with them. — Tom
Thanks for the feedback Tom! The page actually is not just a definition…it also has different guides and articles that could help as well.