ScenarioYou're troubleshooting a third-party app that frequently quits on your Mac.

 The next step in troubleshooting the app’s issue is to upgrade to the latest version of the app. This can help resolve any compatibility issues, bugs, or performance problems that the app may have with your version of macOS1. You can check for updates to your software by opening the App Store and looking at the Updates section for apps that you got from the App Store, or by visiting the app developer’s website for apps that you got from another source1. Upgrading to the latest version of the app may also provide new features or enhancements that can improve your user experience2.

Creating a new file, removing the preference file, reinstalling or upgrading macOS, or troubleshooting application preferences are not the best options for this scenario, as they may not address the root cause of the app’s issue, or they may be too drastic or time-consuming. Creating a new file may not help if the app quits regardless of the filetype or content3. Removing the preference file may delete your custom settings or preferences for the app, and it may not fix the issue if the app has a problem with its code or resources4. Reinstalling or upgrading macOS may erase your data or settings, and it may not be necessary if the issue is specific to the app and not the operating system5. Troubleshooting application preferences may be useful if the app has a problem with its configuration or options, but it may not work if the app has a problem with its compatibility or functionality.

References: 1: If an app on your Mac stops responding, quits unexpectedly, or won’t open - Apple Support. 2: How to Fix Crashing Apps on a Mac - How-To Geek. 3: If an app freezes or quits unexpectedly on Mac - Apple Support. 4: How to Reset Mac App Preferences to Their Default Settings - Make Tech Easier. 5: How to reinstall macOS from macOS Recovery - Apple Support. : How to troubleshoot preferences in Mac OS X - Adobe Support.