123DX File Extension

What is 123DX file?

123DX is a file extension commonly associated with 123D Design Model Format files. 123D Design Model Format specification was created by Autodesk. 123DX file format is compatible with software that can be installed on iOS, Mac OS, Windows system platform. 123DX file belongs to the CAD Files category just like 158 other filename extensions listed in our database. Autodesk supports 123DX files and is the most frequently used program to handle such files, yet 3 other tools may also be used. Software named Autodesk was created by Autodesk, Inc.. In order to find more detailed information on the software and 123DX files, check the developer’s official website.

Programs which support 123DX file extension

The following list contains programs grouped by 3 operating systems that support 123DX files. 123DX files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with 123DX extension?

Being unable to open files with 123DX extension can be have various origins. On the bright side, the most encountered issues pertaining to 123D Design Model Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. We have prepared a listing of which will help you resolve your problems with 123DX files.

Step 1. Get the Autodesk

The main and most frequent cause precluding users form opening 123DX files is that no program that can handle 123DX files is installed on user’s system. The most obvious solution is to download and install Autodesk or one to the listed programs: Autodesk 123D. 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 Autodesk website and download the installer.

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

You still cannot access 123DX files although Autodesk is installed on your system? Make sure that the software is up to date. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. The reason that Autodesk cannot handle files with 123DX may be that the software is outdated. The latest version of Autodesk should support all file formats that where compatible with older versions of the software.

Step 3. Set the default application to open 123DX files to Autodesk

If the issue has not been solved in the previous step, you should associate 123DX files with latest version of Autodesk you have installed on your device. The next step should pose no problems. The procedure is straightforward and largely system-independent

Change the default application in Windows

• Clicking the 123DX with right mouse button will bring a menu from which you should select the Open with option
• Select Choose another app → More apps
• The last step is to select Look for another app on this PC option supply the directory path to the folder where Autodesk is installed. Now all that is left is to confirm your choice by selecting Always use this app to open 123DX files and clicking OK.

Change the default application in Mac OS

• By clicking right mouse button on the selected 123DX file open the file menu and choose Information
• Open the Open with section by clicking its name
• From the list choose the appropriate program and confirm by clicking Change for all....
• If you followed the previous steps a message should appear: This change will be applied to all files with 123DX extension. Next, click the Continue button to finalize the process.

Step 4. Verify that the 123DX is not faulty

Should the problem still occur after following steps 1-3, check if the 123DX file is valid. Being unable to access the file can be related to various issues.

1. Check the 123DX file for viruses or malware

If the file is infected, the malware that resides in the 123DX file hinders attempts to open it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. 123DX file is infected with malware? Follow the steps suggested by your antivirus software.

2. Verify that the 123DX file’s structure is intact

If the 123DX file was sent to you by someone else, ask this person to resend the file to you. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with 123DX extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

Some files require elevated access rights to open them. Log in using an administrative account and see If this solves the problem.

4. Check whether your system can handle Autodesk

The operating systems may note enough free resources to run the application that support 123DX files. Close all running programs and try opening the 123DX file.

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

Latest versions of programs and drivers may help you solve problems with 123D Design Model Format files and ensure security of your device and operating system. It is possible that one of the available system or driver updates may solve the problems with 123DX files affecting older versions of given software.

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