Use software such as WinRAR , 7-Zip , or The Unarchiver .
Filenames with codes like sc23255 and GDD (Game Design Document or General Design Data) are frequently associated with game assets, software development packages, or technical documentation. sc23255-GDDv1023926.part1.rar
Ensure all numbered parts of the archive are downloaded and located in the same directory. Use software such as WinRAR , 7-Zip , or The Unarchiver
Right-click on .part1.rar and select "Extract Here." The software will automatically pull data from the other parts to rebuild the original file. Use software such as WinRAR