Software & Apps File Types What Is an MPK File? How to open and convert MPK files by Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated on May 29, 2020 File Types Design Cryptocurrency MS Office Windows Linux Google Drive Apps File Types Backup & Utilities View More Tweet Share Email A file with the MPK file extension is an ArcGIS Map Package file that contains map data (layouts, embedded objects, and more) in one file that's easy to distribute. The MPK file extension is also used for Project64 Memory Pack files, which are used by Nintendo 64 emulators. If what you have is a video file, it's more than likely an MKV file that you're misreading as an MPK file. See the bottom of this page for other similar-looking file extensions that you might be confusing for an MPK file. How to Open an MPK File MPK files that are ArcGIS Map Package files can be opened with Esri's ArcGIS program. ArcGIS Map Document files (.MXD) are embedded in MPK files and can be opened with the same software. With ArcGIS open, you should be able to drag the MPK file directly into the program. Another way is to right-click on the MPK file and select Unpack. The map packages will unpack to the user's \Documents\ArcGIS\Packages\ folder. Project64 Memory Pack files that end in the MPK file extension can be opened with Project64. If you find that an application on your PC attempts to open the MPK file, but it's the wrong application, or if you would rather have another installed program open your MPK files, you can change the default program in Windows. How to Convert an MPK File You should be able to convert an ArcGIS Map Package MPK file using the ArcGIS program mentioned above. This can be done as follows: Open the MPK file in ArcGIS. Select Project. Select Save As. Give the project a new name and select Save. You can't convert MPK to MP4, AVI, or any other video format because MPKs aren't videos. However, MKV files are video files, and so they can be converted to other video file formats with a free video converter. Still Can't Open the File? It's easy to misread another file's extension as .MPK, even if the two formats are unrelated and can't be used with the same software. If your file won't open with the programs mentioned above, there's a good chance that it's not an MPK file. Some file types that look similar to MPK files include MPL, MPLS, MPN, and MAP. Another is KMP, which is a Korg Trinity/Triton Keymap file that you can open with Awave Studio. MPKG is a tricky one that's identical to MPK with just one extra letter at the end. These are Meta Package files used by Mac computers. If you find that your file doesn't use the .MPK file extension, research the file extension that it is using to learn more about the format and, hopefully, find a valid program that can open, edit, or convert it.