Version 1.1 (February 2024):
- Added 2 minutes demo at first start-up
- Load Excel file for sheet names outside EDT (faster start-up)
- Various bug fixes and improvements in the application framework

Version 1.0 (December 2023):
- Do not call Thread.stop() to be compatible with Java 20+
- Check that the file exists before opening it and show error if it doesn't
- Improved help
- More than 100 improvements and bug fixes in the application framework

Version 1.0-beta (June 2023):
Everything is done.