How to fold ordinary envelopes? Folding steps of simple envelopes

Steps:

1 Prepare a rectangular piece of paper (A4 size and proportion are good, and use a more beautiful one if you want to be beautiful), and then fold the lower right corner to the center line along the dotted line as shown in the figure: 2 Fold the lower right corner upward to make it coincide with the left corner; 3 Fold the upper right corner to make it coincide with another right corner; 4 Open the two left corners; 5 Fold the upper left corner; 6 Fold the lower left corner again; 7 Fold the whole folded part to a distance of 2CM from the top corner;

Or as shown in the figure below.

There are two ways to fold envelopes.

I hope the answer can help you.