Excel, 92 Bytes

From the VBA editor's immediate window, run the following command: Range("A1:I9").Formula="=IF(ROW()>=COLUMN(),COLUMN()&""×""&ROW()&""=""&COLUMN()*ROW(),"""")" The output is directly on the active worksheet.

Excel, 92 91 Bytes

From the VBA editor's immediate window, run the following command: Range("A1:I9").Formula="=IF(ROW()<COLUMN(),"""",COLUMN()&""×""&ROW()&""=""&COLUMN()*ROW())" The output is directly on the active worksheet.

I golfed an extra byte by swapping the order of an if to change >= to <. I didn't update the screenshot, but it only affects the formula at the top, not the output.