Field Formats on open of DBF

I have one question…I bring a DBF into Libre Office I see what seems to be Field Formats added to the Field Names

Why is this happening…WHEN I “Save As” it carries these Field Formats forward…Can I turn this off? Can I get rid of it or stop from happening?

Thanks

Example: Field1 N, 10, 3
Field1 is the name
N is for numeric
10 is length of field
3 is the number of sig digits

Example: Field2 C, 50
Field2 is the field name
C is for CHAR
50 is the field length