Version: 2017.3
public static string OpenFilePanel (string title, string directory, string extension);

Description

Displays the "open file" dialog and returns the selected path name.

See Also: SaveFilePanel function.


Open File Panel.

using System.IO;
using UnityEngine;
using UnityEditor;

public class OpenFilePanelExample : EditorWindow { [MenuItem("Example/Overwrite Texture")] static void Apply() { Texture2D texture = Selection.activeObject as Texture2D; if (texture == null) { EditorUtility.DisplayDialog("Select Texture", "You must select a texture first!", "OK"); return; }

string path = EditorUtility.OpenFilePanel("Overwrite with png", "", "png"); if (path.Length != 0) { var fileContent = File.ReadAllBytes(path); texture.LoadImage(fileContent); } } }