• Plug the flash drive into the computer.
• Next, in the file you would like to save, find the "Save As..." menu option.
• In the file browser that pops up, locate the flash drive, name your file, and hit Save.

On Windows:

• Flash drives appear under "Computer" in the left-hand column.
• The name of your flash drive will vary.

On Mac:

• Flash drives appear on your desktop.