GTL File Extension

What is GTL file?

GTL filename suffix is mostly used for Gerber Top Layer files. Files with GTL extension may be used by programs distributed for Windows platform. GTL file belongs to the 3D Image Files category just like 622 other filename extensions listed in our database. Altium Designer is by far the most used program for working with GTL files. Software named Altium Designer was created by Altium Limited.. In order to find more detailed information on the software and GTL files, check the developer’s official website.

Programs which support GTL file extension

The following listing features GTL-compatible programs. Files with GTL suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with GTL extension?

Problems with accessing GTL may be due to various reasons. On the bright side, the most encountered issues pertaining to Gerber Top Layer 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 GTL files.

Step 1. Get the Altium Designer

The main and most frequent cause precluding users form opening GTL files is that no program that can handle GTL files is installed on user’s system. The solution to this problem is very simple. Download Altium Designer and install it on your device. The full list of programs grouped by operating systems can be found above. One of the most risk-free method of downloading software is using links provided by official distributors. Visit Altium Designer website and download the installer.

Step 2. Check the version of Altium Designer and update if needed

If you already have Altium Designer installed on your systems and GTL 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 GTL files are not compatible with Altium Designer. The most recent version of Altium Designer is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Assign Altium Designer to GTL files

If the issue has not been solved in the previous step, you should associate GTL files with latest version of Altium Designer you have installed on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Selecting the first-choice application in Windows

• Clicking the GTL 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 Altium Designer is installed. Now all that is left is to confirm your choice by selecting Always use this app to open GTL files and clicking OK.

Selecting the first-choice application in Mac OS

• Right-click the GTL file and select 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 GTL extension. Next, click the Continue button to finalize the process.

Step 4. Verify that the GTL is not faulty

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the GTL file in question. Problems with opening the file may arise due to various reasons.

1. Verify that the GTL in question is not infected with a computer virus

If the file is infected, the malware that resides in the GTL file hinders attempts to open it. Scan the GTL file as well as your computer for malware or viruses. GTL file is infected with malware? Follow the steps suggested by your antivirus software.

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

Did you receive the GTL file in question from a different person? Ask him/her to send it one more time. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. It could happen the the download process of file with GTL 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

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Gerber Top Layer file.

4. Make sure that the system has sufficient resources to run Altium Designer

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

5. Check if you have the latest updates to the operating system and drivers

Latest versions of programs and drivers may help you solve problems with Gerber Top Layer files and ensure security of your device and operating system. It may be the case that the GTL files work properly with updated software that addresses some system bugs.

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