I recently took a large, stable XLSM file, and split it apart into an XLAM and XLSX. Thousands of cells in the XLSX call (udfs) functions in the XLAM, and each such udf beg
Sub Force_Recalc()
Cells.Replace What:="=", Replacement:="=", LookAt:=xlPart, SearchOrder _
:=xlByRows, MatchCase:=False, SearchFormat:=False, ReplaceFormat:=False
End Sub