WsijzE - Version 2.00 WsijzE converts xyz-data (i.e., the general 3D numeric data defined as an arrangement of x-, y-, and z-values) into ijz-data (i.e., an arrangement of z-values at an intersection point, (x, y), of even-interval grid lines on the x and y coordinate system). Approximate errors in the conversion are minimized with effective interpolation processing used. A specified rectangle region of ijz-data can be converted to new ijz-data (ijz to ijz conversion). These conversions can be performed in the WsijzE window. Calculation between two ijz-data can be performed in the Calculation window that is invoked from the WsijzE window. Since sequence of ijz-data is also used in WscntE and Ws3dgE, sister products of WsijzE, by the combination of these, effectively visualizing three-dimensional data can be realized.