I do not understand why this line make me an error:
TFeuille.Cells ( 10 , 7) = SommeJoursVent + " ; 2) " ''SommeJourVent==ARRONDI(SOMME(T2;Y2;AD2;AI2;AN2;AS2;AX2;BC2;BH2;BM2;BR2;BW2;CB2;CG2;CL2;CQ2;CV2;DA2;DF2;DK2;DP2;DU2;DZ2;EE2;EJ2;EO2;ET2;EY2;FD2;FI2;FN2;FS2;FX2;GC2;GH2;GM2;GR2;GW2;HB2;HG2;HL2;HQ2;HV2;IA2;IF2;IK2;IP2;IU2).
exception:
Exception de HRESULT : 0x800A03EC ( Excel)
knowing that I am using a .net framework 4.0 and Microsoft.Office.Interop.Excel 15.0.0.0 , I'm already doing that on a windows application that I have developed with Framework 3.5 and Microsoft Excel Interop 14.0.0.0 .. this has run well.