GET https://{site_url}/_api/web/GetFolderByServerRelativeUrl('{folder_path}')/Files('{file_name}')/$value Use code with caution.
: Ensure the folder path and filename are correctly URL-encoded , especially if they contain spaces or special characters. getfolderbyserverrelativeurl download file
: For very large files, consider using the Microsoft Graph API with the /content endpoint, as it often provides better performance through direct streaming. Working with folders and files with REST - Microsoft Learn getfolderbyserverrelativeurl download file