Excel Sorting Data

[Douglas2949]

I use several Columns.

I put 400; then 400 a ( a in the second column); 400 b......

When I sort it put the 400 at the bottom, with a on top,

it never did that before

It sorted with 400 on top, them a below, and b below that

[#2]

scrrenshots and file attached would be helpful to get quicker and better reply