The .thl file extension relates to the PowerProducer background image icon format. We do not know how to convert this format to others. Some proprietary file formats cannot convert to more common types to protect developer intellectual property, like some DRM media files.
Make sure PowerProducer software is up-to-date if you cannot open .thl files. Developers may introduce new formats in newer versions. This causes compatibility issues with .thl files.
Below are tips to open .thl files and programs that support them. Double-clicking files opens them in associated programs. Windows recognizes the extension to open the file. If Windows does not recognize the extension, you must select a program.
Many files contain only text. System should associate .thl files with appropriate software automatically. If .thl files are not infected, antivirus software may block access. Follow system prompts to open blocked files.
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