I have a site with about 8,000 pages that needs some description meta tag updating. For years I've been using GoLive 6 for page construction and maintenance, but in this case all I want to do is edit the description meta tag in about 400 files spread throughout the site in various sub-folders.

Is there meta tag editing software that anyone would recommend to make the job easier? I've googled the situation and see that there are several programs available, but would appreciate some insight and recommendations.

Many thanks.