関連ワード:  excel how to count text in a column    excel how to count letters in a column    excel how to count text values in a column    excel how to count unique text in a column    excel how to count text in a cell    excel how to count cells with text in a column    excel how to count instances of text in a column    excel formula to count text in a column    excel how to count unique text values in a column    excel how to count cells with specific text in a column