Open the file with Notepad. If it contains lines of code, file paths related to "EAGLE," or component lists, it is harmless. If it contains encrypted strings or lists of your personal keystrokes, it may be associated with a keylogger. How to Manage ULP.txt
The software or a specific script was set to "debug," causing it to output its process into a text file for troubleshooting. ULP.txt
In most cases, . If you are an engineer or a student using CAD software, ULP.txt is a legitimate side effect of your work. However, like any common filename, there are caveats: Open the file with Notepad
Check the settings of the specific ULP script you are running. How to Manage ULP
If you find ULP.txt on your desktop or in a project folder, it is usually because:
Some older or custom-made ULPs use a static filename like ULP.txt to store data before passing it to another process. Is ULP.txt a Virus?