Lotus Notes database
File type: Database file
An nsh file is a database file used by Lotus Notes, now known as IBM Notes.
It stores data for a Lotus Notes database and is intended to be opened within the Notes application.
Found 2 different file type records with the same nsh filename suffix.
File type category:
Database file
Date updated: October 26, 2026
The nsh file extension is associated with Lotus Notes, IBM's collaborative client-server software platform. Lotus Notes was available for Microsoft Windows, macOS and Linux.
An NSH file contains a Lotus Notes database. The database can hold the information managed by a Notes application, including its stored documents and related database data.
IBM Notes is the later name for Lotus Notes, and the format is primarily associated with legacy Notes installations. The MIME type associated with this format is application/vnd.lotus-notes.
On Microsoft Windows, open the file with IBM Notes, formerly called Lotus Notes. The application must be installed and able to access the database; an NSH file is not normally readable as a standalone document.
Conversion of NSH database files to other formats is not generally possible. Open the database in IBM Notes to export or copy individual documents when needed.
Software applications that can open nsh files:
Microsoft Windows
Software applications that can edit nsh files:
Microsoft Windows
Software capable of saving nsh files:
Microsoft Windows
Software apps that create nsh files:
Microsoft Windows
Software applications that handle other tasks involving nsh files:
Microsoft Windows
File type category:
Various data file
Date updated: October 26, 2026
The nsh file extension is associated with NSIS (Nullsoft Scriptable Install System), an open-source system developed by Nullsoft for creating Windows application installers.
An nsh file stores reusable text-based NSIS script code. An NSIS project can include the file from an nsi script, allowing common functions, macros, constants, and other definitions to be shared between installer scripts.
The file is source material rather than a standalone installer. NSIS processes the included code when it compiles an installer for Microsoft Windows.
An nsh file can be opened and edited with any text editor. It is plain-text source code, so a programming-oriented editor can provide syntax highlighting, but this is not necessary for viewing the file.
To use the file in an installer, include it from an NSIS script and compile that script with NSIS on Microsoft Windows.
An nsh file is source code and does not normally have a useful conversion to another file format. It can be edited or reused as text.
When an NSIS script includes the file, NSIS compiles the combined source into a Windows installer. This is a compilation process, not a conversion of the header file into a separate equivalent format.
English
text/x-nsisSoftware applications that handle other tasks involving nsh files:
Microsoft Windows
