You can import Sketch files by dragging and dropping them into your files space:
Pages in Sketch files will import as separate pages in your Figma file. See this article for more information.
Fonts & Text
In order to properly import text objects from Sketch, you need to either use our desktop app or use the font helper. For more information, see Using local fonts.
If you are on Linux or ChromeOS, you can still import Sketch files, but your text objects may not import properly.