PowerShell PowerShell

# Works in Windows PowerShell 5.1 and PowerShell 7+ (.NET needs an absolute path).
$bytes = [Convert]::FromBase64String('R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==')
[IO.File]::WriteAllBytes((Join-Path $PWD 'pixel.gif'), $bytes)