When quoting, Ellipsis (3 space periods) Are used to indicate

When quoting is done with ellipses, space occurs before the first dot and after the final dot.

Explanation:

Ellipsis is used in writing to indicate or to show that something has been missed or omitted in the text.

When ellipsis are used at the time of quoting then, When three [dots] are used, space occurs both before the first dot and after the final dot. When four dots are put, the first one has no space between it and the preceding word.