It would be best for you to attach an example to clarify your requirements. How many dimensions for the array (1D, 2D, ...)? Does the array exist at the final size or do you want to grow the array with each element addition?
Since you are talking about a table, I assume you are dealing with a 2D array of strings.
Typically, you would initialize an array at the final size with all empty strings, then use "replace array element" with the correct index to substitute your data. You can for example use the iteration terminal of your loop for the index so it increments with each step.