Crossword puzzle clue "arranged in rows and columns"

Arranged in rows and columns

One who rows, rows, rows the boat

Web concerns ... and based on six familiar names hidden in rows 1, 4, 12 and 15 of this puzzle grid, what the black squares in those rows symbolize

Edit rows and columns of data?

Setup of rows and columns

Its rows, columns and diagonals all add up to the same number

Array in mathematics with the same number of rows and columns

Rectangular array that's identical when its rows and columns are transposed, as this puzzle's grid