how to insert row in first line of text file ?
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        Published on 2010-03-08T13:22:02Z
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            13:51 UTC
        
        
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c#
hi
i have test file that contain
1,2,3
2,3,4
5,6,7
i need to insert in the first line this: A,B,C
it will be like this:
A,B,C
1,2,3
2,3,4
5,6,7
how i can do it ?
thank's in advance
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