diff --git a/MainForm.ps1 b/MainForm.ps1
index 0fc7f87..f5a967f 100644
--- a/MainForm.ps1
+++ b/MainForm.ps1
@@ -8,54 +8,93 @@ Import-Module PnP.PowerShell
 # Create main form
 $form = New-Object System.Windows.Forms.Form
 $form.Text = "SharePoint XLS Converter"
-$form.Size = New-Object System.Drawing.Size(600,400)
+$form.Size = New-Object System.Drawing.Size(600,500)
 
 # Add controls
-$txtSiteUrl = New-Object System.Windows.Forms.TextBox
-$txtSiteUrl.Location = New-Object System.Drawing.Point(20,120)
-$txtSiteUrl.Size = New-Object System.Drawing.Size(200,20)
+$lblConfig = New-Object System.Windows.Forms.Label
+$lblConfig.Text = "SharePoint Configuration:"
+$lblConfig.Location = New-Object System.Drawing.Point(20,20)
+$lblConfig.Size = New-Object System.Drawing.Size(200,20)
+$form.Controls.Add($lblConfig)
 
-$btnSaveConfig = New-Object System.Windows.Forms.Button
-$btnSaveConfig.Location = New-Object System.Drawing.Point(230,120)
-$btnSaveConfig.Size = New-Object System.Drawing.Size(80,20)
-$btnSaveConfig.Text = "Save Config"
+$txtSiteUrl = New-Object System.Windows.Forms.TextBox
+$txtSiteUrl.Location = New-Object System.Drawing.Point(20,40)
+$txtSiteUrl.Size = New-Object System.Drawing.Size(200,20)
+$txtSiteUrl.PlaceholderText = "Site URL"
+
+$txtProdLib = New-Object System.Windows.Forms.TextBox
+$txtProdLib.Location = New-Object System.Drawing.Point(20,70)
+$txtProdLib.Size = New-Object System.Drawing.Size(200,20)
+$txtProdLib.PlaceholderText = "Production Library"
+
+$txtTempLib = New-Object System.Windows.Forms.TextBox
+$txtTempLib.Location = New-Object System.Drawing.Point(20,100)
+$txtTempLib.Size = New-Object System.Drawing.Size(200,20)
+$txtTempLib.PlaceholderText = "Temp Library"
+
+$txtFolder = New-Object System.Windows.Forms.TextBox
+$txtFolder.Location = New-Object System.Drawing.Point(20,130)
+$txtFolder.Size = New-Object System.Drawing.Size(200,20)
+$txtFolder.PlaceholderText = "Folder Path (optional)"
+
+$btnBrowse = New-Object System.Windows.Forms.Button
+$btnBrowse.Location = New-Object System.Drawing.Point(230,130)
+$btnBrowse.Size = New-Object System.Drawing.Size(80,20)
+$btnBrowse.Text = "Browse"
 
 $btnList = New-Object System.Windows.Forms.Button
-$btnList.Location = New-Object System.Drawing.Point(20,20)
+$btnList.Location = New-Object System.Drawing.Point(20,170)
 $btnList.Size = New-Object System.Drawing.Size(120,30)
 $btnList.Text = "List XLS Files"
 $form.Controls.Add($btnList)
 
 $btnConvert = New-Object System.Windows.Forms.Button
-$btnConvert.Location = New-Object System.Drawing.Point(160,20)
+$btnConvert.Location = New-Object System.Drawing.Point(160,170)
 $btnConvert.Size = New-Object System.Drawing.Size(120,30)
 $btnConvert.Text = "Convert to XLSX"
 $form.Controls.Add($btnConvert)
 
 $btnMove = New-Object System.Windows.Forms.Button
-$btnMove.Location = New-Object System.Drawing.Point(300,20)
+$btnMove.Location = New-Object System.Drawing.Point(300,170)
 $btnMove.Size = New-Object System.Drawing.Size(120,30)
 $btnMove.Text = "Move Files"
 $form.Controls.Add($btnMove)
 
 $txtStatus = New-Object System.Windows.Forms.TextBox
-$txtStatus.Location = New-Object System.Drawing.Point(20,70)
-$txtStatus.Size = New-Object System.Drawing.Size(540,280)
+$txtStatus.Location = New-Object System.Drawing.Point(20,210)
+$txtStatus.Size = New-Object System.Drawing.Size(540,240)
 $txtStatus.Multiline = $true
 $txtStatus.ScrollBars = "Vertical"
 $form.Controls.Add($txtStatus)
-$form.Controls.Add($txtSiteUrl)
-$form.Controls.Add($btnSaveConfig)
+$form.Controls.AddRange(@(
+    $txtSiteUrl,
+    $txtProdLib,
+    $txtTempLib,
+    $txtFolder,
+    $btnBrowse
+))
 
 # Load configuration
 if (-not (Load-Config)) {
     [System.Windows.Forms.MessageBox]::Show("Configuration missing! Please enter settings.")
 }
+else {
+    $txtSiteUrl.Text = $config.SiteUrl
+    $txtProdLib.Text = $config.ProductionLibrary
+    $txtTempLib.Text = $config.TempLibrary
+}
 
 # Attach event handlers
 $btnList.Add_Click({ List-XlsFiles })
 $btnConvert.Add_Click({ Convert-Files })
 $btnMove.Add_Click({ Move-Files })
+$btnBrowse.Add_Click({
+    $selectedFolder = Get-FolderBrowser -context (Get-PnPConnection)
+    if ($selectedFolder) {
+        $relativePath = $selectedFolder.ServerRelativeUrl -replace [regex]::Escape((Get-PnPWeb).ServerRelativeUrl), ""
+        $script:txtFolder.Text = $relativePath.Trim('/')
+    }
+})
 
 # Show form
 $form.Add_Shown({$form.Activate()})
diff --git a/SharePointFunctions.ps1 b/SharePointFunctions.ps1
index 0b8ccff..e3707dc 100644
--- a/SharePointFunctions.ps1
+++ b/SharePointFunctions.ps1
@@ -51,11 +51,19 @@ function List-XlsFiles {
         return
     }
     
-    $tempLibrary = $config.TempLibrary
-    $fileList = @()
+    $folderPath = $script:txtFolder.Text
+    $query = "<View Scope='RecursiveAll'><Query><Where>
+        <And>
+            <Contains><FieldRef Name='FileRef'/><Value Type='Text'>.xls</Value></Contains>
+            <Not><Contains><FieldRef Name='FileRef'/><Value Type='Text'>.xlsx</Value></Contains></Not>
+        </And>
+    </Where></Query></View>"
+
+    $items = Get-PnPListItem -List $script:txtProdLib.Text -PageSize 2000 -Query $query
     
-    $items = Get-PnPListItem -List $config.ProductionLibrary -PageSize 2000 | Where {
-        ($_.FieldValues.FileRef -like "*.xls") -and (-not $_.FieldValues.FileRef.Contains(".xlsx"))
+    if (-not [string]::IsNullOrWhiteSpace($folderPath)) {
+        $folderFilter = "*$($folderPath.Replace('\','/'))*"
+        $items = $items | Where { $_.FieldValues.FileRef -like $folderFilter }
     }
     
     foreach ($item in $items) {
@@ -78,7 +86,7 @@ function Convert-Files {
     $excel.Visible = $false
     
     try {
-        Get-PnPFile -Url "/sites/yoursite/Documents/Temp/FileList.json" -Path $env:TEMP -Filename "FileList.json"
+        Get-PnPFile -Url "/sites/yoursite/$($script:txtTempLib.Text)/FileList.json" -Path $env:TEMP -Filename "FileList.json"
         $files = Get-Content "$env:TEMP\FileList.json" | ConvertFrom-Json
         
         foreach ($file in $files) {
@@ -109,7 +117,25 @@ function Move-Files {
     foreach ($file in $files) {
         Move-PnPFile -SourceUrl $file.OriginalPath -TargetUrl $file.TempPath -Force
         $xlsxPath = [System.IO.Path]::ChangeExtension($file.OriginalPath, ".xlsx")
-        Move-PnPFile -SourceUrl "$tempLibrary/$xlsxPath" -TargetUrl $xlsxPath -Force
+        Move-PnPFile -SourceUrl "$($script:txtProdLib.Text)/$xlsxPath" -TargetUrl $xlsxPath -Force
         $script:txtStatus.Text += "Moved $($file.OriginalFileName) and its XLSX version`n"
     }
 }
+function Get-FolderBrowser {
+    param($context)
+    try {
+        $folder = Get-PnPFolder -Url $script:txtProdLib.Text
+        $ctx = $context
+        $folders = @()
+        
+        $fld = $ctx.Web.GetFolderByServerRelativePath($folder.ServerRelativeUrl)
+        $ctx.Load($fld.Folders)
+        $ctx.ExecuteQuery()
+        
+        $folders += $fld.Folders | Select-Object Name, ServerRelativeUrl
+        return $folders | Out-GridView -Title "Select Folder" -PassThru
+    }
+    catch {
+        $script:txtStatus.Text += "Error browsing folders: $_`n"
+    }
+}