Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.TJC
File Type
TJC HMI Project File
Category
Programming
Best first step
Use compatible software
Quick Summary
A practical overview of the .tjc file format
A TJC file is a project file created by USART HMI, a software development tool used to design user interfaces for TJC (Taojingchi) Human-Machine Interface (HMI) touch displays. These displays are widely used in embedded systems, Arduino projects, and industrial automation. The .tjc file contains al…
File extension
.TJC
File type
TJC HMI Project File
Category
Programming
Recommended action
Open with a trusted compatible app
How to open a .tjc file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .tjc.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .tjc file?
File extension details and usage information
A TJC file is a project file created by USART HMI, a software development tool used to design user interfaces for TJC (Taojingchi) Human-Machine Interface (HMI) touch displays. These displays are widely used in embedded systems, Arduino projects, and industrial automation. The .tjc file contains all the design elements of the interface, including layout configurations, images, fonts, touch event scripts, and control components like buttons, sliders, and text boxes. It serves as the working project file where developers build and test their GUI before compiling it into a binary format (.tft) to be uploaded directly to the HMI hardware. TJC is the Chinese domestic counterpart to the Nextion HMI brand, and while their hardware and software (USART HMI vs. Nextion Editor) are highly similar, .tjc files are specifically tailored for TJC-branded screens.
Software Compatibility
Programs that may open or work with .tjc files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
No specific software is listed for this platform yet. Try checking the file source, identifying the original application, or using a trusted universal file viewer when appropriate.
Can .tjc files be converted?
Options for saving or exporting this file to another format
In many cases, a .tjc file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .tjc file.
Why can't I open a .tjc file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .tjc format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .tjc files
To open a .tjc file, use software that supports this file format.
- USART HMI
- Nextion Editor
- Wine
- Parallels Desktop
- VirtualBox
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .tjc file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.