I interpreted your post to mean that you did have Excel and was offering a quick way to capitalize on "it's easy" in case- perhaps- you didn't know you could do it in Excel and then import it into Numbers.
To make grids like the picture, you can create it in Numbers from scratch. You punch 1 into the upper left cell and then use a formula in the cell to the right of it to add 1. Copy that formula over to the 25th column for 25 numbers. Here's a few entries that shows one of them for entering the formula...
in row 2, first cell (below the 1), you modify that same formula to add from the far right cell in the prior row. So that would be 25 + 1 to get 26 to show. Then just copy down the formulas for all of the cells above that except for the "hard entered" 1 to fill in 27-50.
Now you copy that whole row (26-50) formula and paste into row 3 to fill in all of the numbers. You can repeat this all the way down to that bottom row to 1000.
Formatting the numbers to appear high, low, left or right is done in the format tool to the right of the table...
However, to set it up so you can show numbers and then other information you type in above the numbers, you may want to do that in 2 rows (one for the numbers, and the other for the information you want to put above the numbers)
To make that look like a single cell, you might use cell formatting to redo the grid lines to encompass 2 cells instead of each cell...
Here for example, I've entered blank rows between my numbers for content I can type in above the numbers (in it's own Numbers cell)...
You can see the row is blank above 49-50 and 52. But at 51, I centered 51 with the text centering tool in Format and then used the Format, Cell tool to delete the standard line above 51 and put a single box around both cells. This results in giving me the number 51 with a space above it in which I've typed Something. You could do the same for the whole grid.
To stop at different numbers, just duplicate your initial creation to 1000 and delete the cells at whatever number is the target end (of count). For example, if you want to stop at 500 in another grid, just don't have the rows below 500 (delete the formulas in the cells). To stop in the middle of a row, delete the rows below the target row and then delete the formulas in the cells to right of the stop number in the target row.
How's that for 'helpless, non-answers'?