Microsoft Excel belongs to the group of Microsoft 365 programs and you need to have a subscription to use it.
As to using AI features in Microsoft 365 you need to subscribe to CoPilot Pro associated with the Microsoft 365 account. You need to spend like $20 per month to have this capability. This subscription will allow you to:
1. Analyze Data The Copilot can be tasked to provide appropriate help on formulas, predictions and correlations of all sorts.
2. It allows SWOT analysis or matrix, a strategic planning and management technique. It claims to find strengths(S), weaknesses(W), opportunities(O) and threats(T) from competitors. A tool for fact based strategic decision making that may provide new insights and ideas at improving the business. Here is graphic copied from the web (https://templatelab.com/swot-analysis-templates/).
In order to use these features, you need to update your Microsoft 365 license. Click File and at the bottom group click on Update License. You get a verify your subscription. Follow the instructions.