import base64


def file_to_base64(filepath):
    """
    Returns the content of a file as a Base64 encoded string.

    :param filepath: Path to the file.
    :type filepath: str
    :return: The file content, Base64 encoded.
    :rtype: str
    """
    with open(filepath, 'rb') as f:
        encoded_str = base64.b64encode(f.read())
    return encoded_str.decode('utf-8')