Answer:
In a flashdisk,
If you are windows: click "my computer", and under the "cpmputer" section, you will find your flashdisk's name, and click it, in there you can find and also open your files.
If you are Mac: click "Finder", click "Desktop" and find your flashdisk's name, and click it, in there you can find and also open your files.
Could you be more specific? So I can help you in the best way I can.