<#
    First set $x so that it contains everything in OrigCSV.csv.
    Each line of the CSV will be an array element within $x, with "Name" and "Number" properties according to their entry in the CSV.

    ipcsv is a built-in alias for Import-Csv
#>
$x=ipcsv .OrigCSV.csv;
<#
    Next step is to put all the objects in $x through a ForEach-Object loop.

    % is a built-in alias for ForEach-Object.
#>
$x|%{
    <#
        Within ForEach-Object, we're starting a For loop.
        The loop definition starts with setting a counter, $y, to 1.
        Then, if $y is less than or equal to the current line item's "Number" property, the script block will execute.
        After the script block executes, it will increment $y by 1 and check the loop condition again.
        Once $y becomes greater than the current line item's "Number" property, the For loop will exit.
    #>
    for($y=1;$y-le$_.Number;$y++)
    {
        # This next line simply outputs the "Name" property of the current line item.
        $_.Name
    # After the For loop exits, the script will return to the ForEach-Object loop and proceed to put the next item into the For loop.
    }
# After ForEach-Object is done with its work, we pipe the output to Out-File so that the list gets written to a new CSV file.
}|Out-File NewCSV.csv