export declare function getExtensionFromName(name: string): string;
export declare function guessMime(name: string, mtdt?: Record<string, string> | undefined): string;
export declare type Viewer = {
    name: string;
    test: (mime: string) => boolean;
    render: (win: Window, url: string, mime: string, name: string) => void;
};
export declare const VIEWERS: Viewer[];