The file will automatically open in Notepad on Windows, or in TextEdit on Mac OS X. If the IDX file fails to open, proceed to the next step. ” If using Mac OS X, select “Get Info,” then click on “Open With.” WordPad, Notepad, and TextEdit are examples of text editing programs that can open IDX files. If the IDX file still does not open, proceed to the next step. ” In some cases, you may be able to open the IDX file using the program that created the file. For example, if the IDX file originated from Microsoft Outlook Express, you can launch Outlook Express on your computer, and attempt to open the IDX file using Outlook Express. If the IDX file fails to open, follow the steps outlined in method two of this article to open the file using VideoLAN's VLC media player.

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Write a summary of the previous text in Indonesian:
Klik dua kali pada berkas IDX. Klik kanan pada berkas IDX, kemudian klik "Open With". Pilih program penyunting teks apa pun yang tersedia di komputer Anda. Klik-kanan berkas IDX dan pilih "Properties" atau "Get Info". Perhatikan detail berkas untuk menentukan asal berkas IDX. Jalankan program yang menciptakan berkas IDX, lalu coba buka berkas IDX melalui program tersebut.