Avoid Setting Header Offset On Header

| header 1 | header 2 | header 3 | | 1-1 | 2-1 | 3-1 | | 1-2 | 2-2 | 3-2 | | 1-3 | 2-3 | 3-3 | | 1-4 | 2-4 | 3-4 | | 1-5 | 2-5 | 3-5 | | 1-6 | 2-6 | 3-6 | | 1-7 | 2-7 | 3-7 | | 1-8 | 2-8 | 3-8 | | 1-9 | 2-9 | 3-9 | | 1-10 | 2-10 | 3-10 | | 1-11 | 2-11 | 3-11 | | 1-12 | 2-12 | 3-12 | | 1-13 | 2-13 | 3-13 | | 1-14 | 2-14 | 3-14 | | 1-15 | 2-15 | 3-15 | | 1-16 | 2-16 | 3-16 | | 1-17 | 2-17 | 3-17 | | 1-18 | 2-18 | 3-18 | | 1-19 | 2-19 | 3-19 | | 1-20 | 2-20 | 3-20 |