# Walkthrough

## Content



This section discusses how to implement some real-world scenarios using CalcEngine.

| **Topic** | **Snapshot** | **Content** |
| --- | --- | --- |
| [Cross Sheet Referencing in FlexGrid](/componentone/docs/services/online-calcengine/walkthrough/cross-sheet-reference-flexgrid) |   ![Cross-sheet referencing](https://cdn.mescius.io/document-site-files/images/6e9139bd-3a21-44e5-a634-3d09f2143ec5/images/cross-sheet-referencing.png)  Cross-sheet referencing     | Provides step-by-step guide on how to parse and compute expressions and functions across multiple spreadsheets. |