The Sprite Editor is a program to edit the sprite files used in Populous written in Visual Basic .NET back in mid 2007, by TedTycoon. A sprite exported existed already at the time TedTycoon first developed this but there was no edit functionality. That's how he got the idea and decided to decode the file structure of the sprite files and write a program which can export and import sprites.

The sprite editor was poorly designed because when you edit a sprite file and import your own sprite, the program re-writes the whole sprite file meaning it cycles through all the sprites and writes them again every time you save the file. This takes several minutes to complete which isn't very good when you only change one sprite. If TedTycoon was to rewrite the program, he would store each sprite's byte code in memory and then join them all up when saving.