.NST File Extension
File Type 1NoiseTracker Module
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is an NST file?
Module format used by NoiseTracker, an older audio tracking program
File Type 2Outlook Connector for Notes File
This file is saved in a binary format, which requires a specific program to read its contents.
.NST File Association 2
An NST file is a storage file created by Outlook Connector for IBM Lotus Domino, an add-in for Microsoft Outlook that allows users to access Lotus Notes through Outlook. It contains Notes messages and other data for access offline that is stored locally on your computer. NST files are similar to Outlook offline .OST files.
NST files may grow large in size, which may slow the performance of your computer and cause Outlook to crash. If you delete NST files they are automatically recreated by the Connector add-in. To permanently remove the NST file you must delete the Outlook profile and create a new profile.
NST files are located in the same folder with other local profile settings files, such as OST and .PST files, in the following directories:
- Windows XP - C:\Documents and Settings\%username%\Local Settings\Application Data\Microsoft\Outlook\
- Windows Vista, Windows 7, Windows 8, and Windows 10 - C:\Users\%username%\AppData\Local\Microsoft\Outlook\