OTG USB File Explorer Checker is a utility that lets you manage files on a USB flash drive or SD card reader. It is intended for use with an Android device and is compatible with both the micro USB and USB-OTG ports of your device.

The application can be used in two ways: as a standalone program, or as a module embedded in a larger framework. The first version is a simple application that can be used as a standalone program, while the second version is a module that can be used within a framework.

In either case, the application has an interface that can be used to perform operations on files on the USB flash drive or SD card reader.