.MMSYSCACHE File

The mmsyscache file extension is associated with the Google Android operating system for smart phones and tablets.

The mmsyscache file is data container (in Windows Explorer seems like folder) with data cache created by system.

How to open:

You most likely cannot access this file type manually and there is not even a reason to do so.

How to convert:

Various cache files are typically not meant to be converted to anythin else.