.SWZ File Extension
File TypeAdobe Flash Player Cache File
What is an SWZ file?
Cache file introduced with version 9 of Adobe Flash Player; contains data that has been digitally signed by Adobe; allows data to be cached within the Flash Player, similarly to how a browser caches data.
SWZ files enable Flash Player animations to load more quickly. They also allow developers to use Runtime Shared Libraries (RSLs), which are SWZ files that are shared between Flash applications. This allows application file sizes to be smaller.
SWZ files offer some advantages over a traditional Web browser cache, since they include a digital signature and can be reused outside of the domain from which they originated.