How to search for a string in all sheets of an Excel workbook?

I was able to solve my problem and have posted the code for the ones who might need it

Dim sheetCount As Integer
Dim datatoFind

Sub Button1_Click()

    Find_Data

End Sub

Private Sub Find_Data()
    Dim counter As Integer
    Dim currentSheet As Integer
    Dim notFound As Boolean
    Dim yesNo As String

    notFound = True

    On Error Resume Next
    currentSheet = ActiveSheet.Index
    datatoFind = StrConv(InputBox("Please enter the value to search for"), vbLowerCase)
    If datatoFind = "" Then Exit Sub
    sheetCount = ActiveWorkbook.Sheets.Count
    If IsError(CDbl(datatoFind)) = False Then datatoFind = CDbl(datatoFind)
    For counter = 1 To sheetCount
        Sheets(counter).Activate

        Cells.Find(What:=datatoFind, After:=ActiveCell, LookIn:=xlFormulas, LookAt _
        :=xlPart, SearchOrder:=xlByRows, SearchDirection:=xlNext, MatchCase:= _
        False, SearchFormat:=False).Activate

        If InStr(1, StrConv(ActiveCell.Value, vbLowerCase), datatoFind) Then
            notFound = False
            If HasMoreValues(counter) Then
                yesNo = MsgBox("Do you want to continue search?", vbYesNo)
                If yesNo = vbNo Then
                    Sheets(counter).Activate
                    Exit For
                End If
            Else
                Sheets(counter).Activate
                Exit For
            End If
            Sheets(counter).Activate
        End If
    Next counter
    If notFound Then
        MsgBox ("Value not found")
        Sheets(currentSheet).Activate
    End If
End Sub

Private Function HasMoreValues(ByVal sheetCounter As Integer) As Boolean
    HasMoreValues = False
    Dim str As String
    Dim lastRow As Long
    Dim lastCol As Long
    Dim rRng  As Excel.Range

    For counter = sheetCounter + 1 To sheetCount
        Sheets(counter).Activate

        lastRow = ActiveCell.SpecialCells(xlLastCell).Row
        lastCol = ActiveCell.SpecialCells(xlLastCell).Column

        For vRow = 1 To lastRow
            For vCol = 1 To lastCol
                str = Sheets(counter).Cells(vRow, vCol).Text
                If InStr(1, StrConv(str, vbLowerCase), datatoFind) Then
                    HasMoreValues = True
                    Exit For
                End If
            Next vCol

            If HasMoreValues Then
                Exit For
            End If
        Next vRow

        If HasMoreValues Then
            Sheets(sheetCounter).Activate
            Exit For
        End If
    Next counter
End Function