1. 在執行 Windows 10 的電腦上,選取 [開始] > [檔案總管],或從工作列選取 [檔案總管]。

  2. 按住不放 (或以滑鼠右鍵按一下) 您要播放的 MP4 檔案、選取 [開啟檔案],然後從應用程式清單中選擇您偏好的檔案播放程式。

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