Problem trying to run 32 bit VBA program on a 64 bit machine

Question

I am a new programmer using VBA in Excel. I have used code that refers to a kernel32 in the VBA code. This code fails on a 64 bit machine. Runs perfectly fine on 32 bit machine. Is there code I can add that will allow the program to run on both systems?
The code is being used to determine the UTC time of a cell from a report.
Thank you in advance. Code below:
Option Explicit
Public Declare Function SystemTimeToFileTime Lib _
    "kernel32" (lpSystemTime As SYSTEMTIME, _
    lpFileTime As FILETIME) As Long
Public Declare Function LocalFileTimeToFileTime Lib _
    "kernel32" (lpLocalFileTime As FILETIME, _
    lpFileTime As FILETIME) As Long
Public Declare Function FileTimeToSystemTime Lib _
    "kernel32" (lpFileTime As FILETIME, lpSystemTime _
    As SYSTEMTIME) As Long
Public Type FILETIME
    dwLowDateTime As Long
    dwHighDateTime As Long
End Type
Public Type SYSTEMTIME
    wYear As Integer
    wMonth As Integer
    wDayOfWeek As Integer
    wDay As Integer
    wHour As Integer
    wMinute As Integer
    wSecond As Integer
    wMilliseconds As Integer
End Type

Answer 1

I don't have Office-64 to test but try this
#If VBA7 Then
Declare PtrSafe Function SystemTimeToFileTime Lib "kernel32" Alias "SystemTimeToFileTime" (lpSystemTime As SYSTEMTIME, lpFileTime As FILETIME) As Long
Declare PtrSafe Function LocalFileTimeToFileTime Lib "kernel32" Alias "LocalFileTimeToFileTime" (lpLocalFileTime As FILETIME, lpFileTime As FILETIME) As Long
Declare PtrSafe Function FileTimeToSystemTime Lib "kernel32" Alias "FileTimeToSystemTime" (lpFileTime As FILETIME, lpSystemTime As SYSTEMTIME) As Long
#Else
Public Declare Function SystemTimeToFileTime Lib _
"kernel32" (lpSystemTime As SYSTEMTIME, _
lpFileTime As FILETIME) As Long
Public Declare Function LocalFileTimeToFileTime Lib _
"kernel32" (lpLocalFileTime As FILETIME, _
lpFileTime As FILETIME) As Long
Public Declare Function FileTimeToSystemTime Lib _
"kernel32" (lpFileTime As FILETIME, lpSystemTime _
As SYSTEMTIME) As Long
#End If
For a good intro
Declaring API Functions In 64 Bit Office