freeze pains in Excel.ahk

#SingleInstance,Force
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XL_Handle(XL,1) ;get handle to Application
;***********freeze panes in Excel*******************
XL_Freeze(XL,Row:="") ;turns off freeze panes
XL_Freeze(XL,Row:="1",Col:="B") ;freeze first row and first column
XL_Freeze(XL,Row:="2",Col:="b") ;just freeze  columns at b
XL_Freeze(XL,Row:="1",Col:="b") ;just feeze rows at 1

;***********Togle Screen update*******************
XL_Toggle_Screen_Update(XL)
loop, 10{
XL.Application.ActiveSheet.Range("A" A_Index).Interior.ColorIndex :=a_index
sleep, 50
}
XL_Toggle_Screen_Update(XL)
;***********MRU - Most recently Used files*******************
XL_MRU(FileName:="B:\Diet.xlsx")
return
;***********************Freeze Panes in Excel********************************.
XL_Freeze(PXL,Row="",Col="A"){
PXL.Application.ActiveWindow.FreezePanes := False ;unfreeze in case already frozen
IfEqual,row,,return ;if no row value passed row;  turn off freeze panes

PXL.Application.ActiveSheet.Range(Col . Row+1).Select ;Helps it work more intuitivly so 1 includes 1 not start at zero
PXL.Application.ActiveWindow.FreezePanes := True
}
;***********************Screen update toggle********************************.
XL_Toggle_Screen_Update(PXL){
   PXL.Application.ScreenUpdating := ! PXL.Application.ScreenUpdating
}
;***********************MRU*********************************.
XL_MRU(FileName=""){
XL_Handle(XL,1)
XL.RecentFiles.Add(FileName) ;adds file to recently accessed file list
For file in ComObj("Excel.Application").RecentFiles
(A_Index<>1)?mruList.Insert(file.name): ;if A_Index doesn't =1, insert filename
mruList.Insert(RegExReplace(Filename,"^[A-Z]:")) ;adds to MRU list
}
;  Function for connecting to Excel
XL_Handle(ByRef PXL,Sel){
ControlGet, hwnd, hwnd, , Excel71, ahk_class XLMAIN ;identify the hwnd for Excel
IfEqual,Sel,1, Return, PXL:= ObjectFromWindow(hwnd,-16).application ;Handle to Excel Application
IfEqual,Sel,2, Return, PXL:= ObjectFromWindow(hwnd,-16).parent ;Handlle to active Workbook
IfEqual,Sel,3, Return, PXL:= ObjectFromWindow(hwnd,-16).activesheet ;Handle to Active Worksheet
}
;***********adapted from ACC.ahk*******************
ObjectFromWindow(hWnd, idObject = -4){
(if Not h)?h:=DllCall("LoadLibrary","Str","oleacc","Ptr")
 If DllCall("oleacc\AccessibleObjectFromWindow","Ptr",hWnd,"UInt",idObject&=0xFFFFFFFF,"Ptr",-VarSetCapacity(IID,16)+NumPut(idObject==0xFFFFFFF0?0x46000000000000C0:0x719B3800AA000C81,NumPut(idObject==0xFFFFFFF0?0x0000000000020400:0x11CF3C3D618736E0,IID,"Int64"),"Int64"), "Ptr*", pacc)=0
 Return ComObjEnwrap(9,pacc,1)
}