You can’t save a Table but you can save other Data Types, such as Boolean, Number, Integer and String, etc (Primitive Data Types)
You can however convert a Table into a JSON string and Save it to Data Store, although this is done automatically so you don’t have to but be careful because it has limitations and special rules.
You can convert Array, and Dictionary with string keys
You can’t convert Array with gaps, Mixed - Table and Dictionary with non string keys
And no you cannot store other data types that I didn’t mentioned to DataStore, ie Instances, Vector3, CFrame, and Color3 but they can be converted to other data types as well.