Maybe a small macro.
Select an empty sheet, Press Alt-F11 to open the VBE. From the Menu/Ribbon, Insert a new module. Copy and paste the code below.
Change the value of the MaxRows to whatever you need, currently 1000.
Change the value of the HLStart to whatever you need, currently 5477.
Click anywhere between the Sub and End Sub and press F5 to run the code.
It creates the hyperlinks but I can't test it because I don't have the real links, etc. Anyway, give it a go, see how far you get.
Option Explicit
Sub CreateHyperlinks()
Dim i As Long
Dim MaxRows As Long: MaxRows = 1000
Dim HLStart As Long: HLStart = 5477
Range("A1").Select
For i = 1 To MaxRows
With Range("A" & i)
.FormulaR1C1 = _
"=""myclientswebsite[dot]com/products/tv/""&ROW(RC)+" & HLStart & "& ""-tv"""
ActiveSheet.Hyperlinks.Add _
Anchor:=Range(.Address), _
Address:= _
.Text
End With
Next 'i
End Sub
Bookmarks