MS Excel
How do you delete a column?

Select the row heading you want to delete and select Edit>Delete from the menu
Right click the column heading you want to delete and select delete from the shortcut menu
Select the column heading you want to delete and select Insert Delete from the menu
Select the column heading you want to delete and select the Delete Row button on the standard toolbar

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MS Excel
When all the numbers between 0 and 100 in a range should be displayed in Red Color, apply

Apply Conditional Formatting command on Format menu
Use =if() function to format the required numbers red
All of above
Select the cells that contain number between 0 and 100 then click Red color on Text Color tool

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