Repeated Offset

I needed to have an offset of columns to be repeated every 12 months. This is part of a project, we needed to calculate the coefficient of sales prediction based on the month number, we do have coefficient saved in another table that repeated every year (12 months).

Get column name (columnname as A,B,C, etc) as input inside cell

Excel already has the formula ROW() =Row() Which as we may already know will give us the number of the row we are in, if you add no parameters However, the COLUMN() is kind of tricky Because of the fact that cell addresses (or references) are based on the old style of R1C1 =Column()