Tips to open FTL file

Can't open the FTL file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open FTL files as well as a list of programs that support FTL files.

FTL file extension

File Name FreeMarker Template Format
File Developer The FreeMarker Project
File Category Developer Files

The FTL file is supported on 3 operating systems. Depending on your operating system, you may need different software to handle the FTL files. Below is a summary of the number of programs that support and open the FTL file on each system platform.

Operating systems
  • 1
  • 1
  • 1
  • 0
  • 0
  • 0

What is FTL file?

The file in the FTL format belongs to the Developer Files category. The creator of this file is The FreeMarker Project. In addition to this file, the Developer Files category includes 1205 related files. FreeMarker Template Format is most often found on 3 operating systems. The file will work on Linux, Mac OS, Windows systems, unfortunately not on others. The main program that supports this format is FreeMarker. This was created by Apache Software Foundation. Alternatively, you can use 2 other programs.

How to open FTL file?

The most common problem when using FreeMarker Template Format is that a specific FTL is not associated with the program. Thus, when you open FTL, the program selection wizard or some other program starts. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the FTL file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install FreeMarker

The first step is to check if the computer has the FreeMarker program installed. The easiest method is to use the system search engine by entering the program name FreeMarker in it. In the absence of an appropriate program, its installation in the vast majority of cases will fix the problem. Later in this article you will find a list of programs that can open FTL files.

Programs to open FTL file

Remember to download programs supporting FTL files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of FreeMarker with FTL files

If the application is or has been freshly installed, but the FTL file still does not use the FreeMarker program, it means no association. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. Changes can be made using the "Change" button. If there is no software on the list, simply select "Browse" and manually select the directory where the application is installed. Checking the "Always use the selected program ..." box will permanently associate the FTL file with the FreeMarker program.

Step 3. Update FreeMarker to the latest version

The fault may also lie with the FreeMarker program, it is possible that FreeMarker Template Format requires a newer version of the program. This can be done using the application (if it provides such options) or from the Apache Software Foundation website and install the latest version.

Step 4. Check for the following problems with the FTL file

Of course, it may happen that despite the above steps, the file still does not work. This could be due to the file itself, the cleanest issues are:

The FTL file may be unusually small compared to the original file. This suggests truncating the FTL file contents when downloading or copying. The only repair option is to download the file again.
The computer may have fallen victim to a computer virus or hacker. A virus scan using an up-to-date antivirus program should fix the problem. If this is not possible, you can use the online scanner. The scan should cover the entire computer, not only the FTL file that we want to open. Sometimes virus-infected FTL files cannot be recovered, so make a backup in advance.
Older version of FTL file may not always be supported by the latest software version. On their websites, developers usually offer free solutions to such problems, e.g. in the form of a conversion program or an older version of the program.
The file may be corrupted in a number of ways. Repairing is very dependent on the file type. Sometimes the program itself has options to repair the most popular FTL file corruption. The easiest way to restore the file is from a backup or by contacting The FreeMarker Project, but this one can be expensive. Not all damage can be reversed.
The program indicates that the file is encrypted or corrupted. The encrypted FTL files can be used by the device on which they were encrypted, on any other device it is required to have the appropriate cryptographic key and decrypt the file before its recovery.
Some operating systems do not allow file operations in certain locations, eg in system directories or directly on the system drive. These directories are write-protected to them and it's very hard to fix this problem. Copying the FTL file to another location will fix the problem.
This problem only occurs with more complex files. In this case, the FTL file is blocked by the first application to open it. Closing other programs should help. If the error persists after closing other programs, wait for a while. Some anti-virus or backup software may occupy the FTL file for a certain period of time. If nothing helps, please reset the device.