The file I have is looong (160k lines). Most of it is pretty consistent, but some lines are like this: ID name val1 val2 val3 X Y Z ID name X Y Z ID name val1 val2 val3 X Y Z And it's random, so this makes it really difficult to read it properly. Pandas returns 8 columns, but in the wrong order: ID name val1 val2 val3 X Y Z ID name X Y Z Nan Nan Nan ID name val1 val2 val3 X Y Z Continue reading...