I subscribe to Grow Curriculum (https://growcurriculum.org). I downloaded all the files they had available, but didn't want to manually extract, move, rename, etc. So, this file came into existence.

grow-unzip-files.ps1

$growDestination = "C:\Users\evoris\Grow Curriculum\2019-2020\"
$growDirectory = "C:\Users\evoris\Grow Curriculum\"
$hashPatterns = @{
    "PLAN" = "01 Planning"
    "CURR" = "02 Curriculum"
    "DISC" = "03 Discipleship"
    "EVEN" = "04 Events"
    "VOLU" = "05 Volunteers"
    "PARE" = "06 Parents"
    "GAME" = "07 Games"
}

Get-ChildItem -Path $growDirectory -Filter *.zip | ForEach-Object {
    $archive = $_.FullName
    $7zipExe = "C:\Program Files\7-Zip\7z.exe"
    # Check if key exists
    $itemKey = $_.Name.Substring(0,4)
    if ($hashPatterns.ContainsKey($itemKey)) {
        $itemValue = $hashPatterns[$itemKey]
        & $7zipExe d $archive "__MACOSX"
        $newDir = Join-Path $growDestination $itemValue
        $newDir = Join-Path $newDir $_.BaseName.Substring(4).Replace("_", " ")
        & $7zipExe x $archive -o"$newDir"
        Get-ChildItem -Path $newDir -Filter *.pdf | Rename-Item -NewName { $_.Name -replace '^(_)(.+pdf)$', '$2' }
    } else { echo "No key found for $_.Name" }
}