diff --git a/SharePointFunctions.ps1 b/SharePointFunctions.ps1
index 16cf38d..af98431 100644
--- a/SharePointFunctions.ps1
+++ b/SharePointFunctions.ps1
@@ -70,7 +70,14 @@ function List-XlsFiles {
         if (-not [string]::IsNullOrWhiteSpace($folderPath)) {
             $script:txtStatus.Text += "Searching in folder: $folderPath`n"
             # Get the folder ID first
-            $folderItem = Invoke-MgGraphRequest -Method GET -Uri "https://graph.microsoft.com/v1.0/drives/$($drive.Id)/root:$($folderPath)"
+            # Construct the correct URI for the folder
+            $folderUri = "https://graph.microsoft.com/v1.0/drives/$($drive.Id)/root:$($folderPath)"
+            $script:txtStatus.Text += "Folder URI: $folderUri`n"
+            try {
+                $folderItem = Invoke-MgGraphRequest -Method GET -Uri $folderUri -ErrorAction Stop
+            } catch {
+                throw "Folder not found: $($_.Exception.Message)"
+            }
             $items = Get-MgDriveItemChild -DriveId $drive.Id -DriveItemId $folderItem.id
         } else {
             $script:txtStatus.Text += "Searching in root folder`n"