How do I search for multiple file types on Google Search Appliance

Question

I want to search for multiple file types at once. For example, when I want to search for ".htm" files, I add "filetype:htm" to the query and that works fine. Similarly, "filetype:html" also works. However, how can I specify a query parameter that returns all htm AND html files?

Answer 1

The query prefix filetype: filters the results to include only documents with the specified file extension. No spaces can come between filetype: and the specified extension.

You can specify multiple file types by adding filetype: terms to the search query, combined with the Boolean OR.

Search Protocol Reference

Answer 2

QUERY filetype:html OR filetype:htm