format button
You select the columns and change the setting to having 1 column in the formatting options for columns.
by default is left alignment, you can change it if you want
yes
Quick Access toolbar
False
TRUE
In Excel, there is no need to change the number of columns, just move left or right (or change the percent of view) on the page.
You click on the cell you want to change and make your changes. If you are asking about how to change the letters at the top of columns and numbers to the left of rows in Excel, you can not.
To split document to sections which can have unique section names for easier navigation and to inform the reader what he is reading about. It can be like chapters in a book or parts of a very long formal document. It can also be used to apply different kinds of formatting in the document, such as having different amounts of columns in different parts.
just inter change the value a[i][j] to a[j][i]
The density properties generally change as you go down the columns of the Periodic Table by increasing.
Sure, that is as good a way as any to change columns.