Powershell script to scan through directories and return delimited file information and hyperlink

A little background on my intent:

The purpose of the first function, GetFileNames, is to read through directories in a main folder that contains digital information on a number of facilities, and return the list of files with their BaseName.

The second function, SplitFileNames, takes the output of GetFileNames, and splits the name into 3 parts using the underscore as a delimiter. The names of the files are all structured like this; SITECODE_FACNUM_FILETYPE, so for example, DKFX_00099_MAP. Each of the 3 parts form individual columns that I then import into a database in Access.

Also, I've never used Powershell before this, and the experience I've had so far is basically a combination of reverse engineering and splicing code from a number of sources, and obviously some of my own writing.

My questions/respectful requests are:

1. I'm almost certain there's got to be a better way to do what I'm trying to accomplish, and that I just don't have a solid enough understanding with the information I've gone through to make it happen. So I would definitely appreciate any recommendations at all for improvement.

2. I also need the hyperlink information contained in FullName as column as well, but unfortunately I could never get it to work correctly since I have to split only the BaseName up into 3 pieces.

Thank you!

$targetPath = "C:\Users\mattm\Google Drive\TestDatabase\"
$outputPath_1 = "C:\Users\mattm\Google Drive\Powershell Scripts\Facilities Database Scanner\outputScan_1.csv"
$outputPath_2 = "C:\Users\mattm\Google Drive\Powershell Scripts\Facilities Database Scanner\outputScan_2.csv"
$delimPath = "_"


Function GetFileNames([string]$path, [string]$outputFile) {
  $list = Get-ChildItem $path -Recurse | where {!$_.PSIsContainer}
  $list | Select-Object BaseName | Export-Csv -NoTypeInformation $outputFile 
}

GetFileNames $targetPath $outputPath_1


Function SplitFileNames([string]$inputFile, [string]$outputFile) {

    $inputData = Get-Content $inputFile | select -Skip 1
    $array = @()
    $outArray = @()

    $inputData | Foreach{
                    $elements = $_.split($delimPath)
                    $array += ,@($elements[0], $elements[1], $elements[2])
                 }


    Foreach($value in $array){
        $outArray += New-Object PSObject -Property @{
        'SiteCode' = $value[0]
        'FacilityNumber' = $value[1]
        'FileTypeCode' = $value[2]
        }


    }

$outArray | Select-Object "SiteCode","FacilityNumber","FileTypeCode" | ConvertTo-Csv -NoTypeInformation | % {$_ -replace '"',""} | Out-File $outputFile -fo -en ascii

}

SplitFileNames $outputPath_1 $outputPath_2