A daily updated filename extension database!

FFX file extension

The table below provides useful information about the .ffx file extension. It answers questions such as:

  • What is the .ffx file?
  • What program do I need to open a .ffx file?
  • How can the .ffx file be opened, edited or printed?
  • How can I convert .ffx files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Microsoft Find Fast Index

FFX file is a Microsoft Find Fast Index. MS Find Fast Indexer is a utility that builds indexes to speed finding documents using the Open and Open Office Documents commands in Microsoft Office programs, including Microsoft Outlook.
Category: Data files
Application: Microsoft Office
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
FFX aliases:
FFX related links:
FFX related extensions:
Microsoft Find Fast List

Microsoft Find Fast Status File

Microsoft Find Fast Cache

Other types of files may also use the .ffx file extension.

🚫 The .ffx file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bfx, cfx, dfx, efx, fbx, fcx, fdx, fex, ff, ffa, ffc, ffd, ffs, fgx, frx

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Visual FoxPro Report
ffDiaporama Project
WebFOCUS Procedure File
FactoryTalk View Display Data
Warcraft II: Tides of Darkness Image
The Games Factory Extension
Microsoft Find Fast Status File
Bitware Fax Image
FCX Archive
Microsoft DirectX D3D Effect

🔴 Can't open a .ffx file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .ffx file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .ffx file extension, write to us!

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