IX is an extension that have files associated with a software tool for searching a sequence of characters in multiple files called dtSearch. IX are files used to store information related to data indexing. They can contain filters, a search zone, exceptions, etc. This allows for a much more efficient and faster search, especially when the search area includes text in terabytes of data. Technically, these are plain text files that contain XML code.

This solution was developed by dtSearch Corp.