To build a neural network in MS Excel today, you no longer need complex VBA macros. Modern features like , LAMBDA functions , and Dynamic Arrays allow you to create sophisticated models directly within the spreadsheet grid. 1. The Modern Method: Python in Excel

Here is where it gets interesting. Modern Excel allows (File > Options > Formulas > Enable iterative calculation).

When that Loss cell finally drops below 0.01, you will have a feeling that no model.fit() can replicate.

: Format your training data as an Excel Table.