.SJR File Extension
File TypeScratchJr Project File
What is an SJR file?
An SJR file is a project created by ScratchJr, an app used to help young children learn how to program interactive games and stories. It is a Zip-compressed archive that contains various resource files, such as .WAV sound files, .PNG thumbnails, and data .JSON files. SJR files are used to create stories, small games, and animations.
SJR files are saved in the ScratchJr file format, which is similar to the Scratch 2.0 .SB2 file format. The SJR file is simply a .ZIP archive that stores contents such as sound files, sprites, and scripts.