FTN File Extension

What is FTN file?

Full format name of files that use FTN extension is Fortran Source Code Format. FTN files are supported by software applications available for devices running Linux, Mac OS, Windows. FTN file format, along with 1205 other file formats, belongs to the Developer Files category. Users are advised to use Pro Fortran software for managing FTN files, although 7 other programs can also handle this type of file.

Programs which support FTN file extension

The list that follows enumerates programs compatible with FTN files, divided into 3 categories based on operating system on which they are available. Files with FTN 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 FTN extension?

There can be multiple causes why you have problems with opening FTN files on given system. Fortunately, most common problems with FTN 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 Pro Fortran

The most common reason for such problems is the lack of proper applications that supports FTN files installed on the system. This issue can be addressed by downloading and installing Pro Fortran or different compatible program, such as Photran, Windows Notepad, Visual Fortran Compiler. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. The safest method of downloading Pro Fortran installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Update Pro Fortran to the latest version

If the problems with opening FTN files still occur even after installing Pro Fortran, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Pro Fortran is available. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. The reason that Pro Fortran cannot handle files with FTN may be that the software is outdated. The latest version of Pro Fortran should support all file formats that where compatible with older versions of the software.

Step 3. Set the default application to open FTN files to Pro Fortran

After installing Pro Fortran (the most recent version) make sure that it is set as the default application to open FTN files. The method is quite simple and varies little across operating systems.

Change the default application in Windows

• Clicking the FTN with right mouse button will bring a menu from which you should select the 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 Pro Fortran is installed. Now all that is left is to confirm your choice by selecting Always use this app to open FTN files and clicking OK.

Change the default application in Mac OS

• From the drop-down menu, accessed by clicking the file with FTN extension, select Information
• Proceed to the Open with section. If its closed, click the title to access available options
• From the list choose the appropriate program and confirm by clicking Change for all....
• Finally, a This change will be applied to all files with FTN extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the FTN for errors

Should the problem still occur after following steps 1-3, check if the FTN file is valid. It is probable that the file is corrupted and thus cannot be accessed.

1. Check the FTN file for viruses or malware

Should it happed that the FTN is infected with a virus, this may be that cause that prevents you from accessing it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. FTN file is infected with malware? Follow the steps suggested by your antivirus software.

2. Check whether the file is corrupted or damaged

Did you receive the FTN 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 FTN extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access 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 Fortran Source Code Format file.

4. Check whether your system can handle Pro Fortran

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

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

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Fortran Source Code Format files. It is possible that one of the available system or driver updates may solve the problems with FTN files affecting older versions of given software.

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