Why might my Windows batch file not work after renaming it to .bat?

If your batch file does not run, Windows may have silently saved it as create-wallet.bat.txt instead of create-wallet.bat. Windows has a setting that hides known file extensions, so the file appears to have the right name even though it has a hidden .txt extension appended — meaning the operating system still treats it as a plain text file rather than an executable batch script. This matters because a misnamed file will simply open in Notepad instead of running your Kaspa wallet command, and the mistake is invisible unless you turn file extension display on in Windows Explorer.