Files with ndf extension is used for Microsoft SQL Server secondary data files. The secondary data file is created by Microsoft SQL Server, when the primary data file (mdf file) is full of data and other data cannot be stored in it. Secondary data files are often stored on other partitions, or hard drives then primary data files.

There are 4 other file types using
the NDF file extension!

empty icon.ndf - NimbleScan NimbleGen design data

empty icon.ndf - NeoPlanet Browser data

empty icon.ndf - ProWORX NXT short comment

empty icon.ndf - NDFEdit channel data

NDF file extension - Microsoft SQL Server secondary data

What is ndf file? How to open ndf files?

File type specification:

Various data file type icon Various data file type

File extension ndf is associated with Microsoft SQL Server, a relational database server for Microsoft Windows.

ndf files are used for secondary data files that make up all the data files, other than the primary data file.

Secondary data files are used with extra large databases and often are stored on other hard drives, than primary database files (mdf files).

Some databases might not have any secondary data files, while other might have several secondary data files.

Updated: December 4, 2023

The default software associated to open ndf file:

Microsoft SQL Server icon

Microsoft Corporation logoMicrosoft SQL Server  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft SQL Server is set of relational database applications and tools used to create, organize and manage SQL databases. Microsoft SQL Server primary supports T-SQL and ANSI SQL query languages. SQL Server is distributed in many editions, with different features.

Help how to open:

Use Microsoft SQL Server to open ndf files.

How to convert:

There is no way how to convert .ndf files to other formats.

Related links:

Microsoft SQL MSDN.

List of software applications associated to the .ndf file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open ndf file, edit ndf file, convert ndf file, view ndf file, play ndf file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting ndf files.

Software that open ndf file - Microsoft SQL Server secondary data

Programs supporting the exension ndf on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Microsoft SQL Server for open ndf file action.

Microsoft Windows:

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