Select the paragraph or text you want to format
Open the paragraph settings or formatting menu
Find the indentation options
Set the first line indent to zero or left align it with the margin
Set the hanging indent to the desired amount
Apply the changes
Use the ruler if available by dragging the top indent marker to the left margin and the bottom marker to the hanging indent position
In Microsoft Word, open Paragraph settings and choose Hanging under Special
In Google Docs, open Format, then Align and indent, then Indentation options, and set Hanging
In Pages or similar apps, use the paragraph inspector and adjust the hanging indent setting