MainForm.ps1

@@ -60,6 +60,14 @@ $btnConvert.Size = New-Object System.Drawing.Size(120, 30)
 $btnConvert.Text = "Convert to XLSX"
 $form.Controls.Add($btnConvert)
 
+# Create Checkbox for Recursive Listing
+$chkRecursive = New-Object System.Windows.Forms.CheckBox
+$chkRecursive.Location = New-Object System.Drawing.Point(20, 205)
+$chkRecursive.Size = New-Object System.Drawing.Size(150, 20)
+$chkRecursive.Text = "List Recursively"
+$chkRecursive.Checked = $true  # Default to recursive
+$form.Controls.Add($chkRecursive)
+
 # Create Status TextBox (Top Right)
 $txtStatus = New-Object System.Windows.Forms.TextBox
 $txtStatus.Location = New-Object System.Drawing.Point(450, 20)  # Top Right Corner
@@ -113,7 +121,8 @@ $form.Controls.AddRange(@(
     $txtFolder,
     $btnBrowse,
     $btnSaveConfig,
-    $btnConnect
+    $btnConnect,
+    $chkRecursive # Add the checkbox to the form
 ))
 
 # Load configuration
@@ -149,6 +158,7 @@ $btnBrowse.Add_Click({
 # Store the DataGridView and txtStatus in script scope
 $script:dataGridView = $dataGridView
 $script:txtStatus = $txtStatus
+$script:chkRecursive = $chkRecursive
 
 # Show form
 $form.Add_Shown({ $form.Activate() })

README.md

@@ -1,85 +0,0 @@
-# SharePoint XLS to XLSX Converter
-
-This tool allows you to convert legacy `.xls` files stored in SharePoint to the modern `.xlsx` format. The converter maintains the original folder structure and automatically uploads the converted files back to SharePoint.
-
-## Installation Instructions
-
-### Step 1: Install PowerShell 7.5
-
-1. Visit the [PowerShell GitHub releases page](https://github.com/PowerShell/PowerShell/releases)
-2. Download the appropriate installer for your system (e.g., `PowerShell-7.5.0-win-x64.msi` for 64-bit Windows)
-3. Run the installer and follow the on-screen instructions
-4. Verify the installation by opening PowerShell 7 from the Start menu
-
-### Step 2: Install Required Dependencies
-
-1. Download the XLS to XLSX Converter files to a folder on your computer
-2. Right-click on PowerShell 7 in the Start menu and select "Run as administrator"
-3. Navigate to the folder containing the converter files:
-   ```
-   cd C:\path\to\XLS_to_XLSX
-   ```
-4. Run the dependency installer script:
-   ```
-   .\Install-Dependencies.ps1
-   ```
-5. The script will install the required Microsoft Graph modules and verify that Excel is installed
-
-### Step 3: Configure Microsoft Graph Authentication
-
-1. The first time you run the application, you'll need to authenticate with Microsoft Graph
-2. Follow the prompts to sign in with your Microsoft 365 account that has access to the SharePoint site
-
-## Operating the Program
-
-### Starting the Application
-
-1. Open PowerShell 7 as administrator
-2. Navigate to the application folder:
-   ```
-   cd C:\path\to\XLS_to_XLSX
-   ```
-3. Run the application in STA mode:
-   ```
-   pwsh -STA -File .\MainForm.ps1
-   ```
-
-### Using the Application
-
-1. **Configure SharePoint Settings**:
-   - Enter your SharePoint site URL (e.g., `https://yourcompany.sharepoint.com/sites/yoursite`)
-   - Enter the document library name (e.g., `Shared Documents` or `Documents`)
-   - Click "Save Config" to save these settings for future use
-
-2. **Connect to SharePoint**:
-   - Click the "Connect" button to authenticate with SharePoint
-   - Follow any authentication prompts that appear
-
-3. **Select a Folder** (Optional):
-   - Click "Browse" to navigate to a specific folder in SharePoint
-   - If no folder is selected, the application will work with files in the root of the document library
-
-4. **List XLS Files**:
-   - Click "List XLS Files" to find all `.xls` files in the selected location
-   - The files will be displayed in the grid at the bottom of the window
-
-5. **Convert Files**:
-   - Click "Convert to XLSX" to begin the conversion process
-   - The application will:
-     - Download each `.xls` file
-     - Convert it to `.xlsx` format using Excel
-     - Upload the converted file back to the same location in SharePoint
-   - Progress and status messages will appear in the text box on the right
-
-## Troubleshooting
-
-- **Authentication Issues**: Ensure you have the correct permissions to access the SharePoint site
-- **Excel Errors**: Make sure Microsoft Excel is installed and properly licensed
-- **File Access Errors**: Check that you have permission to read and write to the SharePoint libraries
-- **Conversion Failures**: Some very old or complex Excel files may not convert properly
-
-## Notes
-
-- The application requires an active internet connection
-- Large files may take longer to download, convert, and upload
-- The original `.xls` files remain unchanged in SharePoint 

SharePointFunctions.ps1

@@ -259,12 +259,24 @@ function List-XlsFiles {
             #$items = Get-MgDriveItemChild -DriveId $drive.Id -DriveItemId $folderItem.id
             
             # Call the recursive function to process files and subfolders
-            $script:txtStatus.Text += "Listing files in current folder...`n"
+            if ($script:chkRecursive.Checked) {
-            $fileList = Get-XlsFilesCurrentFolder -DriveId $drive.Id -DriveItemId $folderItem.id
+                $script:txtStatus.Text += "Listing files recursively...`n"
+                $fileList = Get-XlsFilesRecursive -DriveId $drive.Id -DriveItemId $folderItem.id
             } else {
-            $script:txtStatus.Text += "Searching in root folder...`n"
+                 $script:txtStatus.Text += "Listing files in current folder only...`n"
+                $fileList = Get-XlsFilesCurrentFolder -DriveId $drive.Id -DriveItemId $folderItem.id
+            }
+        } else {
+            $script:txtStatus.Text += "Searching in root folder`n"
+            
+             if ($script:chkRecursive.Checked) {
+                $script:txtStatus.Text += "Listing files recursively...`n"
+                $fileList = Get-XlsFilesRecursive -DriveId $drive.Id -DriveItemId $root.Id
+            } else {
+                $script:txtStatus.Text += "Listing files in current folder only...`n"
                 $fileList = Get-XlsFilesCurrentFolder -DriveId $drive.Id -DriveItemId $root.Id
             }
+        }
 
          if ($fileList.Count -gt 0) {
             $script:txtStatus.Text += "Saving file list...`n"
@@ -287,6 +299,55 @@ function List-XlsFiles {
     }
 }
 
+# Recursive function to get XLS files from a folder and its subfolders
+function Get-XlsFilesRecursive {
+    param (
+        [string]$DriveId,
+        [string]$DriveItemId
+    )
+    
+    $allFiles = @()
+    
+    # Check if DriveId or DriveItemId is null or empty
+    if ([string]::IsNullOrEmpty($DriveId)) {
+        $script:txtStatus.Text += "Error: DriveId is null or empty`n"
+        return $allFiles
+    }
+    if ([string]::IsNullOrEmpty($DriveItemId)) {
+        $script:txtStatus.Text += "Error: DriveItemId is null or empty`n"
+        return $allFiles
+    }
+    
+    # Get items in the current folder
+    try {
+        $items = Get-MgDriveItemChild -DriveId $DriveId -DriveItemId $DriveItemId -ErrorAction Stop
+    }
+    catch {
+        $script:txtStatus.Text += "Error getting items: $($_.Exception.Message)`n"
+        return $allFiles
+    }
+    
+    foreach ($item in $items) {
+        $script:txtStatus.Text += "Checking item: $($item.Name)`n"
+        
+        # If it's a folder, recurse into it
+        if ($item.Folder -and $item.Folder.ChildCount -ne $null) { # Check if it's a folder AND has children
+            $script:txtStatus.Text += "Found folder: $($item.Name), recursing...`n"
+            $allFiles += Get-XlsFilesRecursive -DriveId $DriveId -DriveItemId $item.Id
+        }
+        # If it's an Excel file, add it to the list
+        elseif ($item.Name -like "*.xls" -or $item.Name -like "*.xlsx" -or $item.Name -like "*.xlsm") {
+            $script:txtStatus.Text += "Found XLS file: $($item.Name)`n"
+            $allFiles += [PSCustomObject]@{
+                OriginalPath = $item.WebUrl
+                OriginalFileName = $item.Name
+            }
+        }
+    }
+    
+    return $allFiles
+}
+
 # Function to get XLS files from only the current folder
 function Get-XlsFilesCurrentFolder {
     param (
@@ -318,8 +379,8 @@ function Get-XlsFilesCurrentFolder {
     foreach ($item in $items) {
         $script:txtStatus.Text += "Checking item: $($item.Name)`n"
         
-        # If it's an Excel file, add it to the list - only .xls files, not .xlsx
+        # If it's an Excel file, add it to the list
-        if ($item.Name -like "*.xls" -and -not ($item.Name -like "*.xlsx")) {
+        if ($item.Name -like "*.xls" -or $item.Name -like "*.xlsx" -or $item.Name -like "*.xlsm") {
             $script:txtStatus.Text += "Found XLS file: $($item.Name)`n"
             $allFiles += [PSCustomObject]@{
                 OriginalPath = $item.WebUrl