Merge 3 text files

Hi I tried to merge 3 text files using UNION ALL TASK(all 3 are different headers).

ex: Text1: abc 123

Text 2: def 456 hello hi

Text3: xyz hi hi hi hi hi hi dsfdsfsdfs

I want output like this:

abc 123

def 456 hello hi

xyz hi hi hi hi hi hi dsfdsfsdfs

UNION ALL is giving me different order like this.....

def 456 hello hi

abc 123

xyz hi hi hi hi hi hi dsfdsfsdfs

Can any one suggest me what other options I can use (maybe script task?)

Thank you

Read this post by Alberto Ferrari, might help you figure out your issue: http://sqlblog.com/blogs/alberto_ferrari/archive/2007/04/10/mantaining-order-in-ssis-flow-problems-with-merge.aspx

UNION ALL doesn't maintain order

Thank you, I did used merge and sort, it worked out perfectly, but I had to do 2 dataflows instead of one.

dataflow1: text1+text2 (output1)

dataflow2: output1+text3