Finder: How to erase the comments from thousands of documents with just a few clicks?

Sorry. Please Ignore my first reply, I left something out !

Using Automator : create a Service :

Open Automator, select New : Command-N

Select : Service, then click Choose

Toggle the : Services receives selected box :

Select : files or folders :

Then toggle the any application box :

Select Finder.app :

Once done :

Start to build the Service :

From Actions, select File & Folders, then double click, or drag the action : "Set Spotlight Comments for Finder items"

into the area labelled : Drag actions or files here to build your workflow.

Then click on Variables, select Text & Data, then drag the item "Text" into the "Set Spotlight Comments for Finder items" action :

Uncheck the box : Append to existing comments

Save the Service : Command-S

I called the Service "Clear_Spotlight_Comments"

The Service is now available through a Finder window :

Clicking on "Clear_Spotlight_Comments, will clear comments from single, or multiple selections in the Finder window.

Using Automator : create a Service :

Open Automator, select New : Command-N

Select : Service, then click Choose

Toggle the : Services receives selected box :

Select : files or folders :

Then toggle the any application box :

Select Finder.app :

Once done :

Start to build the Service :

From Actions, select File & Folders, then double click, or drag the action : "Set Spotlight Comments for Finder items" into the area labelled : Drag actions or files here to build your workflow.

Then click on Variables, select Text & Data, then drag the item "Text" into the "Set Spotlight Comments for Finder items" action :

You should now have :

Save the Service : Command-S

Or, use whatever name you like.

The Service will now be available through a Finder window :

Clicking on "Clear_Spotlight_Comments", will clear comments from single, or multiple selections in the Finder window.