IDX0 File Extension

IDX0 file icon
Runescape Cache Index Format
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What is IDX0 file?

Full format name of files that use IDX0 extension is Runescape Cache Index Format. Runescape Cache Index Format format was developed by Jagex. IDX0 file format is compatible with software that can be installed on Windows system platform. Files with IDX0 extension are categorized as Game Files files. The Game Files subset comprises 1272 various file formats. Runescape is by far the most used program for working with IDX0 files. Software named Runescape was created by Jagex Ltd.. In order to find more detailed information on the software and IDX0 files, check the developer’s official website.

Programs which support IDX0 file extension

Below is a table that list programs that support IDX0 files. IDX0 files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support IDX0 file

Windows Windows

How to open file with IDX0 extension?

Problems with accessing IDX0 may be due to various reasons. Fortunately, most common problems with IDX0 files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Download and install Runescape

The most common reason for such problems is the lack of proper applications that supports IDX0 files installed on the system. The solution is straightforward, just download and install Runescape. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. One of the most risk-free method of downloading software is using links provided by official distributors. Visit Runescape website and download the installer.

Step 2. Verify the you have the latest version of Runescape

If you already have Runescape installed on your systems and IDX0 files are still not opened properly, check if you have the latest version of the software. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. This can be one of the causes why IDX0 files are not compatible with Runescape. The most recent version of Runescape is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open IDX0 files to Runescape

After installing Runescape (the most recent version) make sure that it is set as the default application to open IDX0 files. The next step should pose no problems. The procedure is straightforward and largely system-independent

Change the default application in Windows

  • Right-click the IDX0 file and choose Open with option
  • Click Choose another app and then select More apps option
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where Runescape is installed. Now all that is left is to confirm your choice by selecting Always use this app to open IDX0 files and clicking OK.

Change the default application in Mac OS

  • Right-click the IDX0 file and select Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • Select Runescape and click Change for all...
  • If you followed the previous steps a message should appear: This change will be applied to all files with IDX0 extension. Next, click the Continue button to finalize the process.

Step 4. Check the IDX0 for errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper IDX0 file. Problems with opening the file may arise due to various reasons.

1. The IDX0 may be infected with malware – make sure to scan it with an antivirus tool.

Should it happed that the IDX0 is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the IDX0 file is indeed infected follow the instructions below.

2. Verify that the IDX0 file’s structure is intact

If you obtained the problematic IDX0 file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. If the IDX0 file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the Runescape Cache Index Format file again.

4. Verify that your device fulfills the requirements to be able to open Runescape

If the system is under havy load, it may not be able to handle the program that you use to open files with IDX0 extension. In this case close the other applications.

5. Verify that your operating system and drivers are up to date

Latest versions of programs and drivers may help you solve problems with Runescape Cache Index Format files and ensure security of your device and operating system. It may be the case that the IDX0 files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the IDX0 file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on IDX0 file.

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