UI File Extension

UI file icon
User Interface Format

What is UI file?

Full format name of files that use UI extension is User Interface Format. User Interface Format specification was created by Nokia. Files with UI extension may be used by programs distributed for Linux, Mac OS, Windows platform. UI file format, along with 1018 other file formats, belongs to the Developer Files category. The most popular program for handling UI files is Nokia Qt Creator, but users can choose among 7 different programs that support this file format.

Programs which support UI file extension

The list that follows enumerates programs compatible with UI files, divided into 3 categories based on operating system on which they are available. Files with UI extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support UI file

How to open file with UI extension?

There can be multiple causes why you have problems with opening UI files on given system. What is important, all common issues related to files with UI extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with UI files.

Step 1. Download and install Nokia Qt Creator

The most common reason for such problems is the lack of proper applications that supports UI files installed on the system. This issue can be addressed by downloading and installing Nokia Qt Creator or different compatible program, such as UltraISO, Jabbim, ActiveState Komodo Professional. 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 Nokia Qt Creator website and download the installer.

Step 2. Verify the you have the latest version of Nokia Qt Creator

You still cannot access UI files although Nokia Qt Creator is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. The reason that Nokia Qt Creator cannot handle files with UI may be that the software is outdated. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Nokia Qt Creator.

Step 3. Set the default application to open UI files to Nokia Qt Creator

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

The procedure to change the default program in Windows

  • Right-click the UI file and choose Open with option
  • Click Choose another app and then select More apps option
  • Finally select Look for another app on this PC, point to the folder where Nokia Qt Creator is installed, check the Always use this app to open UI files box and conform your selection by clicking OK button

The procedure to change the default program in Mac OS

  • By clicking right mouse button on the selected UI file open the file menu and choose Information
  • Open the Open with section by clicking its name
  • Select Nokia Qt Creator and click Change for all...
  • A message window should appear informing that This change will be applied to all files with UI extension. By clicking Continue you confirm your selection.

Step 4. Check the UI for errors

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

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

If the UI is indeed infected, it is possible that the malware is blocking it from opening. Scan the UI file as well as your computer for malware or viruses. If the UI file is indeed infected follow the instructions below.

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

If you obtained the problematic UI 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. When downloading the file with UI extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Check if the user that you are logged as has administrative privileges.

Sometimes in order to access files user need to have administrative privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the User Interface Format file.

4. Verify that your device fulfills the requirements to be able to open Nokia Qt Creator

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

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

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with User Interface Format file. It is possible that one of the available system or driver updates may solve the problems with UI files affecting older versions of given software.

Do you want to help?

If you have additional information about the UI 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 UI file.

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