How to Convert Year to Month in Excel Data

You can follow these steps to refine the year into months in Excel:

1. Insert a new column next to the year column
2. In the first row of the new column, enter the formula =DATE(A2,1,1) where 'A2' is the cell containing the year information for the first company
3. Drag the formula down to apply it to all the rows in the new column
4. The new column will now display the first day of the year for each company
5. Right-click on the new column and select 'Format Cells'
6. In the Format Cells dialog box, select 'Custom' under the 'Category' list
7. In the 'Type' field, enter 'mmm' to display the month abbreviation
8. Click 'OK' to apply the format
9. The new column will now display the month abbreviation for each company

Alternatively, you can use the 'TEXT' function to convert the year information into month abbreviations. The formula would be =TEXT(DATE(A2,1,1), 'mmm') where 'A2' is the cell containing the year information for the first company. You can then drag the formula down to apply it to all the rows in the new column.