Sub DATAS_Pour_Test()
Dim f_r_m$, rng As Range
f_r_m = "=ROW()*COLUMN()&CHAR(INDEX({83;116;97;112;108;101},RANDBETWEEN(1,6)))&ADDRESS(ROW(),COLUMN(),4)&REPT(CHAR(RANDBETWEEN(48,57)),3)"
Sheets("Feuil1").Cells.Clear
Sheets("Feuil1").[A1:Y1] = "=""ITEM_1""&COLUMN()"
Randomize
Sheets("Feuil1").Cells(2, 1).Resize(Application.RandBetween(4, 10), 25).Formula = f_r_m
With Sheets("Feuil1").Cells(1).CurrentRegion
.Value = .Value: .Columns.AutoFit: .Borders.Weight = 2
End With
End Sub