The Excel inventory system is one of the most popular ways to create an inventory system. Suppose you are running an eCommerce business, a small business, or a brick-and-mortar store.

While Excel is a viable tool for creating a POS system, it may not be the best option given the free and paid software available.

Adding a drop-down list in Excel is a quick and efficient way to choose predefined data. Here's how to create a drop-down list in Microsoft Excel.