The most straightforward and recommended way to access Excel is through a Microsoft 365 subscription. Microsoft 365 offers a variety of plans tailored to different needs, from individuals to large enterprises. Subscribing to Microsoft 365 not only gives you access to Excel but also to other Microsoft Office applications, along with regular updates and cloud storage.
Although Microsoft is pushing more towards its subscription-based model, you can still purchase a one-time license for Office, which includes Excel. This can be a good option if you prefer not to subscribe but still want to use the full version of Excel.
For those who might not need the full desktop version of Excel or are looking for a more accessible option, Microsoft offers a free online version of Excel. This can be a great starting point, especially for basic spreadsheet tasks.