MS Excel
If you need to remove only the formatting done in a range (numbers and formula typed there should not be removed), you must

Double click the Format Painter and then press Esc key in keyboard
From Edit menu choose Clear and then Formats
From Edit menu choose Delete
Click on Remove Formatting tool on Standard Toolbar

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MS Excel
To copy formatting from one area in a worksheet and apply it to another area you would use:

There is no way to copy and apply formatting in Excel – You have to do it manually
The Copy and Apply Formatting dialog box, located under the Format > Copy and Apply menu
The Format Painter button on the standard toolbar
The Edit > Copy Format and Edit>Paste Format commands form the menu

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MS Excel
How do you delete a column?

Select the row heading you want to delete and select Edit>Delete from the 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
Right click the column heading you want to delete and select delete from the shortcut menu

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