Remove file types from the list of indexed files
CDS indexes plenty of types of files. In the File types to index section, all of the file types that are indexed by CDS are listed by extension. If necessary, you can remove types of files by removing their extensions from the list.
In the Tools menu, click Options.
Select the Advanced tab.
Select the appropriate file extension in the list.
Click Remove. The Warning window appears.
Click OK to confirm.
IMPORTANT: Once an extension is removed from the list, the corresponding file type will no longer be indexed and all previously indexed files of this type will be removed from the index.