Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to open idx files [title] Double-click on the idx file. [step] The file will automatically open in notepad on windows, or in textedit on mac os x. [substeps] If the idx file fails to open, proceed to the next step. [title] Right-click on the idx file, and select " open with.

Ending1: [title] Find and right-click the file you wish to open. [step] A dialog box should pop up. Ending2: [step] " the idx file will begin the opening process, and the preview files and background photos will be unlocked. [title] Double-click on " my idx file. Ending3: [substeps] If using mac os x, select " get info, " then click on " open with. " [title] Select any text editing program installed on your computer. Ending4: [step] This will open the default version of idx on windows; or if the idx file you've just opened does not provide high-end features, you may need to start another. Otherwise, you can create a new version.

Answer format: ending1/ending2/ending3/ending4