how do i clear the apps cache file

[AC Question]

how do i clear cache file

 

[SpookDroid]

If it's a specific app, then go to your device's Settings, find the Application Manager, find the app you want to clear the cache for, and tap the Clear Cache button (depending on your version, it might be under an 'extra' layer called Storage).

If it's the whole device's cache, then you have to boot it up in Recovery Mode (method will depend on your specific device) and select/execute the Wipe Cache option.