erreur 6 non définie

[patsin]

Hello

I started an application wich uses "Write To Spreadsheet File" function.

This application is supposed to run 2 or 3 weeks, and saves some values every 30 minutes (for example) in a file

The write diagrame is :

.

During the last run, after #50 hours, my customer had the folowing message :

I visite the Forum, but didn't find anything.

The DD is not full, the current file had a size of 15 Ko when the problem occured.

I tryed different things : write in a non existante file, write in file already open by excel, ...

but I never had the same message.

Could you please help me ?