Double-click the .exe file. It will prompt you to select a folder for extraction (e.g., your desktop or a temporary folder).
Once extracted, navigate to the folder and run Setup.exe .
It is a self-extracting installer for Adobe Acrobat Pro or Standard (2015 Release).
You will be asked for a Serial Number (perpetual license) or to install in Trial Mode .
The "MUI" designation means it contains all supported language packs, allowing the software to automatically match your operating system's language or let you switch languages within the app.