An SDLPPX file is a package created by SDL Trados Studio, translation software used by businesses. It contains one or more .SDLPROJ project files that need to be translated or reviewed by another user.

SDLPPX file open in SDL Trados Studio 2017 Trados Studio packages contain all the project files needed to be sent to a team member to begin working on a project. SDLPPX files are the primary package type used by Trados Studio and allows team members to share all their project files in one file. You can create an SDLPPX file using the "Create Project Package" wizard in SDL Trados Studio. To do this, select Create Project Package in the toolbar. You can also right-click projects you want in the package and select Create Project Package. When a user completes the translation or review task in the SDLPPX or finds an error, he will send it back it in a return package, which is stored in the .SDLRPX file. SDLRPX files are created using the "Create Return Package" wizard in SDL Trados Studio by selecting Create Return Package in the toolbar. You can also right-click files you want in the package and select Create Return Package.