I asked my client for the font he used in the figma desgin, and he sent me this extention

Design help General
1

I asked my client for the font he used in the figma desgin, and he sent me this extension (fig) that I never seen before and don’t know how to add to webflow
image

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

2

I’d assume that’s a downloaded figma file, not a font.
If you can upload this to your own figma acct or access the original figma you should be able to identify the font.