biow,
I can understand french, but I think I will be more clear by replying in English.
You have to create a property node for your graph where you specify the Format&Precision for the X scale. you want to set Format=7 and Precision=0
Then you have to specify the format string for the X scale. This is also a property node Xscale>>FormatString
By following the instructions found on the LabVIEW online Help, to obtain this format DD/MM/YYYY HH:MM:SS AM, you can use the following format string
<%d>/<%m>/<%Y> <%I>:<%M>:<%S> <%p>
Then the only thing that is left to implement is to read the date/time values from your excel sheet (using activex Automation), select the X marker you want to write to (use Xscale>>Marker>>selection) and change its text value pas
sing it the value retrieved from the excel sheet (using Xscale>>Marker>>text)
Good luck,
A. Deotto