using 2010 with 2007 file it changed formatting

hawgrider1

New Member
Joined
Jul 22, 2010
Messages
8
When i brought some work home on a sd card i worked in it with 2010 at home. At work the next day i opened the files up in 2007 and my columns that had numbers have changed to dates. If i did'nt use the files they remained correctly formatted. is this common?
 

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