This post covers how to create and delete files with command line also called cmd on Windows OS. I am using Windows 10 but these commands should work on Windows 7, windows 8 and windows 11 too.
Create an empty file with desired filename and file extension
echo '' > filename.ext
echo nul > filename.txt
Echo with command line in a file
echo on windows, writes your text as it is.
echo your text > filename.txt
Delete file with command line