How to solve "File has out of browser memory" issue? Even I haven't opened any other tabs in figma

I have download a file in sketch version & when I tried to import in it Figma it’s showing a “file has out of browser memory” error.

What is the size of the Sketch file? If you still have access to the Sketch app, you can try reducing the file size and/or breaking up the file into multiple smaller ones.