Checking iFilters
Suitable iFilters might already be available depending on the version of the applications you are using.
Search 360 automatically indexes all documents with the suffixes ANB, CSV, LNB, and TCV. Your Windows Operating System also has iFilters built in that index many other document types such as DOC, DOCX, HTM, PDF, RTF, TXT, XLS, and XML. The Microsoft Office 2010 Filter Pack is required to index XMLX documents. The easiest way to determine whether the correct iFilter is installed is to import a document of the required type, update the index, and then search for a term that you know is in the document.
Any other document types might require that an appropriate iFilter is installed on the machine, on which indexing is performed.
iFilters are third-party plug-ins that enable index services, such as the Search 360 Index Service, to scan the different document types that can be embedded in entity and link records and extract index terms.
Attention: Documents larger than 100 MB might not be included in the index.
If your document does not appear in the search results, you must install the related iFilter. See Installing iFilters for further details.