Rename images in batch using Irfanview

Earlier I used Exiv2 scripts to rename images.
Now Irfanview allows the same using GUI. The name pattern to be used is :
$E36868(%Y%m%d_%H%M%S)

Use the following powershell script to rename extension:

Get-ChildItem *.HEIC | Rename-Item -NewName { $_.name -Replace '\.HEIC$','.jpg' }