Go to Excel Options > Trust Center > Trust Center Settings > Trusted Locations . Click Add new location and add your REFPROP folder path.
NIST has provided interfaces for several programming languages, and the user community has developed many more.
Follow these steps to complete the standard desktop installation for Windows: Step 1: Run the Setup Executable refprop 91 install
How to Install and Set Up NIST REFPROP 9.1 NIST REFPROP 9.1 is a specialized database for calculating the thermodynamic and transport properties of industrially important fluids and mixtures. Released by the National Institute of Standards and Technology (NIST) , version 9.1 introduced key updates like 121 pure fluids and a 64-bit DLL (REFPRP64.dll) for improved integration with modern applications. 1. System Requirements
A valid provided by NIST or your institution. Roughly 200 MB of free disk space. 2. Step-by-Step Installation on Windows Go to Excel Options > Trust Center >
Installing and enabling features for usually refers to setting up its integration wrappers (like the Excel Add-in) or ensuring the DLL and fluid files are correctly linked. How to Install the REFPROP 9.1 Excel Add-in
Version 9.1 was the first to automatically include REFPRP64.dll , which is necessary for 64-bit versions of Excel or MATLAB. Follow these steps to complete the standard desktop
This comprehensive guide covers the complete installation process for REFPROP 9.1, including standalone setup, environment configuration, and integration with third-party software like MATLAB, Excel, and Python. System Requirements and Prerequisites
: A licensed copy of the REFPROP 9.1 setup executable (typically named Setup.exe or delivered via a digital download link from NIST). 2. Standard Desktop Installation
The installation process usually follows a standard executable wizard:
Locate your downloaded installation file, right-click it, and select . Step 2: Accept the License Agreement