Yes, I can help you with that. Here's a Python script that will do the job. Before running the script, make sure you have Python installed on your computer. This script assumes that you have folders named 'Documents', 'Pictures', and 'Videos' on your desktop. If you don't have these folders, you can either create them manually or modify the script to create them automatically.

```python
import os
import shutil

# Set the path to your desktop
desktop_path = os.path.join(os.path.expanduser('~'), 'Desktop')

# Define the folders for each file type
folders = {
    'Documents': ['.doc', '.docx', '.txt', '.pdf', '.xls', '.xlsx', '.ppt', '.pptx'],
    'Pictures': ['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.ico', '.tiff', '.tif'],
    'Videos': ['.mp4', '.mkv', '.flv', '.avi', '.mov', '.wmv'],
}

# Iterate through each file on the desktop
for file in os.listdir(desktop_path):
    file_path = os.path.join(desktop_path, file)

    # Skip folders
    if os.path.isdir(file_path):
        continue

    # Get the file extension
    file_ext = os.path.splitext(file)[1]

    # Iterate through the folders dictionary to find the appropriate folder for the file
    for folder, extensions in folders.items():
        if file_ext.lower() in extensions:
            # Set the destination path for the file
            destination = os.path.join(desktop_path, folder)

            # Move the file to the appropriate folder
            shutil.move(file_path, os.path.join(destination, file))
            print(f'Moved {file} to {folder}')
            break
```
Copy the code above into a new Python file (e.g., organize_files.py) and execute the script by running python `organize_files.py` in the command prompt or terminal. This script will sort the files on your desktop based on their extensions and move them to the appropriate folders ('Documents', 'Pictures', or 'Videos').
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