You need to save the file in UTF-8 encoding with a BOM (byte order mark). One way to do this is using
Visual Studio Code:
1) Open the .csv file
2) Choose command (Ctrl+Shift+P) Change File Encoding -> Reopen with Encoding -> UTF-8
3) Choose command Change File Encoding -> Save with Encoding -> UTF-8 with BOM
Then you can import into UR with the correct encoding.