Opening NTD Files

The NTD file type is primarily associated with Notepad++.

NTD	File extension: NTD
	File type:	document

What is an NTD file?

NTD files mostly belong to Notepad++. Your NTD file is a container for different types of data.
This extension is not bound to a single format. In one instance it may be a Notepad text document compressed with zlib, while in another it can store an image or specialized data. For example:

Notepad Text – When created by Notepad++, the file holds plain text data (sometimes confused with a Lotus Notes database file). Visit Notepad++ official site for details.

Xerox Scanner File – Some NTD files use the TIFF format to store scans from Xerox WorkCentre devices. They might also appear as Watermark Client TIFF files. See more at Xerox Support.

Bus Stop Display Format – A number of these files serve as display formats for transportation systems (as in NextBus or Omsi 2 add-ons). More information is available at this nextbus webpage.

Overhead Line Data – In engineering design, particularly with PLS-CADD, the file may hold overhead line data; it is sometimes identified as a TDN (Trac Data Now) file. Details can be found at Bentley.

NinjaTrader Database – Certain NTD files store historical market data used by the NinjaTrader platform. Visit NinjaTrader for reference.

PNG Image File – On occasion the file contains image data in PNG format and is even called a Windows NT Disk Image. Such files are best viewed with an image editor like Photoshop.

FilExt.com tip: This variation means that how you open and view an NTD file depends on the originating software. Inspecting the file header (for example, with a hex editor) can reveal its internal structure and guide you to the right program.

How to open NTD files

You need a suitable software like Notepad++ to open an NTD 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 NTD file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a NTD file directly in the browser:. Just drag the file onto this browser window and drop it.

Online NTD Text Viewer

Choose your .ntd file to analyze

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Online File Viewer

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Programs that open and convert NTD files:

Notepad++
See the previous paragraphs to learn more about the main application. NTD files are often referred to as Notepad++ simple text files because this type of file is primarily created or used by this software.
Netrosoft Word Processor (Text Document) by Netrosoft Corporation
Netrosoft produces a software suite with typing, graphing, spreadsheet, and graphics applications. This file type is from the word processing part of the suite. This file format is classified as Text.

Technical Data for NTD File Extension

File classification:

Simple text file

Related files:

tdn, ndt, dwg, zip, npd, sweb, lwd, txt, tif, tiff, png, db

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: NTDMatch.Document
EXEFile: %ProgramFiles%\NTDMatch\NTDMatch.exe %1

ProgramID: WMWorkspace.Application.3
EXEFile: %ProgramFiles%\Watermark\Client\wmwspace.exe

an ntd document is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with NTD files

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