How to convert several html files from UTF-8 to UTF-8-BOM

Hello. I need to convert several html files , located in C:\Folder1 from UTF-8 to UTF-8-BOM.

I had try these two variants with windows Powershell, but non of them works:

get-item C:\Folder1*.* | foreach-object {get-content -Encoding utf8BOM $_ | out-file ("C:\Folder1" + $_.Name) -encoding default}

OR

$MyPath = "C:\Folder1"
Get-ChildItem -Path $sourcedir -Filter *.html | ForEach-Object {

# This variable can be reused
$utf8 = New-Object System.Text.UTF8Encoding $false

$MyFile = Get-Content $MyPath -Raw
Set-Content -Value $utf8.GetBytes($MyFile) -Encoding Byte -Path $MyPath
}

Does anyone know the solution?

Hello,

This is not Adabas and Natural topic.
Topic closed.

Eli