Dates display inconsistent in MS Excel 2007
 

I have two files with the same date ranges (Jun-01 thru Jun-09), but in the
chart one file shows Jan not Jun. The only difference is the format, in the
first file the first date is shown as a number format with value of , whereas
in the second file it is shown as a date mmm-yy.

Can someone explain why this is happening? I can send the files if you want
to see exactly how the dates are entered. Please assist.

Thanks!