Opening an NDX File

The NDX file type is primarily associated with dBase.

NDXFile Extension NDX
File extension: NDX
File type:  database index file

What is an NDX file?

NDX files mostly belong to dBase by dBase. NDX files are data files associated with the dBASE software application.

  • Main Use: dBASE is a proprietary microcomputer database management system(DBMS) that is compatible with Windows systems. It is used to create Windows applications and Web applications that can be hosted on Windows servers. In dBASE, NDX files are used as index files that define the structure and fields of a database and help in quick searching. Each NDX index file consists of a root, branch, and leaf nodes. NDX stands for dBASE non-maintained iNDeX file, as the dBASE application does not update the index automatically when they are modified. Besides dBASE, NDX file format can also be associated with other database management systems on Windows PCs such as Microsoft Visual FoxPro.
  • Other Uses: NDX files are also used by Neat, a digital document organizing software compatible with Windows and macOS systems, to archive documents like receipts or recipes. NDX files can be used to share data with other users of the program. NDX files are also associated with ArcView, a GIS software application meant for the visualization and analysis of geographic data. The NDX file consists of font index information used for storing the GIS data in databases. The NDX file is also associated with the IBM Rational XDE (Extended Development Environment) application to store information used internally by the program.

How do you open NDX files?

You need a suitable software like dBase to open an NDX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your NDX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a NDX file directly in the browser:. Just drag the file onto this browser window and drop it.

Online NDX Text Viewer

Choose your .ndx file to analyze

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

Programs that open and convert NDX files:

  1. dBase by dBase
    See the previous paragraphs to learn more about the main application. NDX files are often referred to as dBase databases because this type of file is primarily created or used by this software.
  2. ArcView (fonts index file) by Esri
    ArcView is a geographic information system (GIS) from the Environmental Systems Research Institute (ESRI) for visualizing, managing, and analyzing maps and geographic information. It has now been replaced by ArcGIS. An NDX file is a font index file for ArcView. It is specific to Unix systems. This file format is classified as GIS. Related links: ArcView on Wikipedia, NDX Format Mentioned in ArcView FAQs, NDX Files Mentioned in ArcView Support Article, ArcView FAQs, NRC Document Mentioning NDX Files
  3. Neat (archive file) by Neat
    Neat is a software for organizing receipts, business cards, and documents as digital files. It is now replaced by the products NeatBooks and NeatFiles. The NDX file is a Neat 5 archive file that is used for exporting a folder or document for sharing with other users of the software. This file format is classified as Compressed. Related links: Neat 5 FAQs, Neat 5 User's Guide, NDX Files Mentioned in Neat Support Article
  4. Rational XDE (Rational XDE model file) by IBM
    Rational XDE is a design and modelling tool based on the Unified Modelling Language (UML). It was developed by IBM and is now discontinued. The NDX file is a a binary file associated with a Rational XDE model. This file format is classified as Developer. Related links: Overview of Rational XDE, Rational XDE in IBM Document, End of Service Message for Rational XDE Products, Rational XDE Mentioned in Document About Rational Rose XDE, Book on Rational XDE
  5. WINDEV (file index) by PC SOFT
    WINDEV is an integrated development environment (IDE) for designing and developing Windows applications. The NDX format is used by a file index for a database in WINDEV. This file format is classified as Database. Related links: WINDEV on Wikipedia (French), WINDEV Concepts, NDX File for WINDEV

NDX file format:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. If there are problems opening a file, you must first determine the file format used. In the following you will find our evaluation of the NDX files:

The NDX extension is quite commonly used. The file itself includes various formats for various programs. The two most popular formats are as follows:

All the rest of the NDX files (38%) have different formats. Sometimes used for whatsapp, article, licence, garage, gpwutilisateur, utilisateurs, activation, produits, clients, patient, produit, ajaids, bareme, detail, master, phrase, ticket, index, login, users, base or list. Drag & drop your file here to see the file format and a preview of your NDX file!

Technical Data for NDX File Extension


The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: NewsStand.Reader.TextSearch
EXEFile: %ProgramFiles%\NewsStand\Reader\ANSReader.exe /Quiet %L


an ndx database index file is a special file format by dBase and should only be edited and saved with the appropriate software.

How to solve problems with NDX files

  • Associate the NDX file extension with the correct application.
  • Update your software that should actually open database index files. Because only the current version supports the latest NDX file format. Search, therefore, e.g. on the dBase manufacturer website after an available dBase update.
  • To make sure that your NDX file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .NDX file online - secure, fast, and no downloads needed.
Drop here
View another file
NDX file viewer NDX file description