Old file, new file, print area, width problem, differences.

[qwertuMM]

Why does one excel file has a larger print area from another file.
Both files have the same zoom setting.

One file is older (test_file1_wrong), excel 2003.

How do I get the same printing area in test_file2_ok.xls file as the old file test_file1_wrong.xls ?
Why in these files, so different width of the print area?