Malignant Tumors. A malignant tumor is a group of diseased cells defined by one of three characteristics: uncontrolled growth, invasion and damage of healthy cells, or metastasizing (spreading) to other organs of the body.They differ from benign tumors, which do not spread or affect other areas of the body. malignant tumor is a group of diseased cells defined by one of three characteristics: uncontrolled growth, invasion and damage of healthy cells, or metastasizing (spreading) to other organs of the body.
Excel Replace Function. The Excel Replace function is similar to the Excel Substitute Function. The Substitute function replaces one or more instances of a given text string. Basic Description. The Excel Replace function replaces all or part of a text string with another string.
1 Excel's DATEDIF Function If you regularly work with dates and times in Excel, then it is worth learning how some of Excel's date-related functions operate. 2  There are over 20 functions in this group, â¦. 3  How to Quickly Sum a Column in Excel SUM is one of the commonly used functions in Excel. One of the most useful functions in Excel is the IF function. What it does is test a value in a specific cell to see if that value meets a certain condition. If the valu â¦ e does meet the condition, one result will happen, if false, a different action will occur.