A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Here is a macro. You may want to test it on a copy of the folder first.
Sub ProcessWorkbooks()
' Change path as needed, but keep \ at the end
Const strPath = "C:\MYWORKSHEETS"
Dim strFile As String
Dim wbk As Workbook
Dim wsh As Worksheet
Application.ScreenUpdating = False
strFile = Dir(strPath & "*.xls*")
Do While strFile <> ""
Set wbk = Workbooks.Open(strPath & strFile)
Set wsh = wbk.Worksheets(1)
With wsh.Range("E:E")
.NumberFormat = "#,##0.00"
.Value = .Value
End With
wsh.Range("A:A,J:J,L:M").Delete Shift:=xlToLeft
wbk.Close SaveChanges:=True
strFile = Dir
Loop
Application.ScreenUpdating = True
End Sub