Help with Install

Installation options available:

Download the zip


Install the package by running the file dat_addin.exe and manually download the required prerequisites as needed. For additional help click the 'About' button on the Dat add-in ribbon within MS Excel:

  • SQL Server LocalDb  (Refer below for installation details)
  • Dot Net if installed version is less than 4.5.1

Option-2 (Recommended)

Install the package by running Setup.exe which automatically downloads and installs the required prerequisites.

The Dat add-in package contains the prerequisite setups for localDB, and .Net.

Unzip the file and run setup.exe. The file loads and installs SQL Sever localDB and Dat add-in

Please note: you may also need to unblock Windows Smart Screen to run this file. 


If Windows or your anti-virus has blocked the download:

For Windows 7 manually install SQL Server LocalDB, if same or later version is not already installed:

Download LocalDB Version 11

Alternatively for Windows 8 or 10:

Download Microsoft SQL Server 2017 LocalDB from:

and run the Express setup file: SQLServer2017-SSEI-Expr.exe

Select Download Media

SQL Express

Select LocalDB option:


2. Install using DAT_AddinSetup.msi file

If file .msi is blocked:

  • Right click the download file
  • Select Properties
  • Tick the unblock checkbox or click the unblock button