Remove Duplicates From Across Multipe Columns In A Single WorkSheet

[snb]

assumptions:

- data in sheet1
- row 1 doesn't contain fieldnames
- no empty rows in the usedrange
- 17 columns that contain data

Sub M_snb()
  sn=sheet1.cells(1).currentregion.resize(,17)

  with createobject("scripting.dictionary")
     for j=1 to ubound(sn)
       .item(join(application.index(sn,j,0)))=application.index(sn,j,0)
     next
     sheet2.cells(1).resize(.count,17)=application.index(.items,0,0)
  end with
End Sub

or another method

Sub M_snb()
  sn=sheet1.cells(1).currentregion.resize(,17)
  c00=""

 for j=1 to ubound(sn)
    if instr(c00 & "|" ,"|" & application.index(sn,j,0) & "|") then 
     sn(j,1)=""
    else
     c00=c00 & "|" & application.index(sn,j,0)
    end if
  next

  sheet1.cells(1).currentregion.resize(,17)=sn
  sheet1.columns(1).specialcells(4).entirerow.delete
End Sub