File Type Generic IconMicrosoft Find Fast Index
File Format Proprietary (Microsoft)
Usage Referenced by an application; not meant to be opened manually
Rank ★ ☆ ☆  Uncommon

An FFX file contains an index of files that are searchable by Find Fast, a utility included with Microsoft Windows. The index may contain all the files on a hard disk or a group of files specified within the Find Fast Control Panel.

The Find Fast Index is created to help speed up the process of finding documents within the Open dialog box. It is used by Microsoft Office and Microsoft Outlook.

Open With

IconMicrosoft Office for Windows

IconMicrosoft Outlook

Updated June 2, 2009
Information from the PC File Extensions Reference