Open TextEdit (found in your Applications folder). Go to Format > Make Plain Text to ensure it saves as a .txt file.
If you need to get a text file onto a USB flash drive (often called a "thumb drive") using your Mac: Download Flash mac txt
You may need to go to System Settings > Privacy & Security and click "Open Anyway" if macOS blocks the installation because it's from a third-party developer. 3. A Note on Adobe Flash Player Open TextEdit (found in your Applications folder)
It sounds like you might be looking for information on how to handle text files with a flash drive or download specific software for Mac. Because "Flash" can refer to a few different things, here are the most likely ways to address your request: 1. Moving or Saving .txt Files to a Flash Drive Moving or Saving
If you are trying to download software for a 3D printer:
Visit the official Flashforge Software page to download the latest or Flash Studio for Mac.