"3D-Calc is a 3-dimensional spreadsheet program for the Atari ST computer. The first version of the program was released in April 1989 and was distributed by ISTARI bvba, Ghent, Belgium. The spreadsheet was 3-dimensional since it contained 13 pages of 2048 rows and 256 columns."@en . "3D-Calc"@en . . . . . "3.31" . . .