Zoho Projects allows you to browse and upload your files from your personal desktop, and cloud services such as Google Drive. You can upload any file type like *.jpg, *.png, *.doc, *.docx, *.ppt, *.xls, *.csv, *.mpeg, *.zip, *.mpeg, *.wmv etc.
When you try to upload a folder, choose the folder to upload and then click Start Upload.
This uploads the attached files and saves it under the selected folder. In addition, it notifies about the documents being uploaded into the workspace to selected coworkers.