A stapler is a mechanical device that joins papers together by driving a thin metal staple through the sheets. Staplers are commonly used in offices, schools, and homes. They come in a variety of sizes and shapes, and can be either manual or electric.
To open a stapler, first identify the release lever. This lever is usually located on the side of the stapler, and it will have a small arrow or other indicator pointing to the direction in which it should be moved. Once you have located the release lever, simply push it in the direction indicated, and the stapler will open.