Professional analytics in Excel
From fragile spreadsheet to auditable model
The River Add-In gives your Excel models visible structure, so you can audit, reuse and share them with confidence.
Visible logic
The visual model map aligns your calculation flow with colleagues and reviewers at a glance.
Explicit operations
Each step does one thing, configured with clear options, no buried formulas.
Built-in checks
Automated data quality checks catch errors as you build.
Keep your workbooks, gain productivity
River lives in your workbook. Same tool, same file format. Your existing formulas, dashboards, and colleagues stay exactly where they are.
Native integration
River reads and writes Excel Tables directly. Mix River operations with Excel formulas in the same workbook.
Fast to build
Operations are configured with dropdowns, not code. Analysts learn River in hours, not weeks.
Easy to share
Share the workbook as usual, or export it as an interactive web application

Payback time
One project
Analysts trained on River recoup the investment in their first project, compared to Excel-only modeling.
Analytics power, built for modelers
River embeds a high-performance SQL engine inside Excel, purpose-built for complex analytical models.
Analyst-friendly operations
Merge tables with multiple dimensions using dedicated operators. No database degree required.

Input and scenario control
Define assumptions, switch scenarios and track inputs consistently. No more hunting across sheets.

No data ceiling
The River SQL calculation engine handles datasets that would freeze Excel. Complex models stay fast.
Get started with River
Install the trial version and test it for 14 days or let us walk you through a demo.
How to start using River?
River is fully contained in an Excel Add-In, making installation easy
1
Get a free licence
No credit card needed.
2
Install the Excel Add-In
Download the installer and follow the instructions.
3
Start modeling
Open Excel and start building models right there! Our in-tool tutorials will help you get started.
4
Share your models
Simply share your models as any Excel workbook, by email or in a shared folder.
Try the River Add-In today.
Designed by former McKinsey consultants
Based on decades of observing the same problems, we've built River to help business analysts, modeling experts and consultants have a more satisfying modeling experience and elevate the quality level in the profession.
Frequently asked questions
Of course! It is strongly encouraged. River models are saved inside the Excel workbook together with the data it uses, making sharing very easy.
You currently need a license to be able to view the model in a workbook, but we're designing a "viewer" version that will allow people without a license to open the model in read-only mode.
If you just want to keep the model for reference, no need to do anything. When your current River license expires, you will always be able to open the Excel workbook and see the input and output data of your model. With the "viewer" version of River, you will also be able to see all the modeling logic and its parameters.
If you want to recreate your model using plain Excel (or another tool), you can use it as a guide during your rebuild.
We come from the consulting industry, where protection of client data is a top priority.
Therefore we designed River so that it runs entirely on your computer, and no data from your workbook is ever leaving.
The only data that River can send is application usage data, to help us build the product. And you can decline this option.
River has been carefully designed to have the smallest possible footprint.
It is packaged in a single Excel Add-In, doesn't send data outside your computer and can be deployed using corporate IT tools.
If you already use think-cell (another popular Add-In), chances are your IT will easily approve it. Otherwise feel free to contact us at info@river-solutions.com.
We have an extensive in-application documentation and tutorials.
We currently provide support via email directly.
