Excel 2007 upgrade to Office 365 - 2007 spreadsheet macros/VBA not working

[gsdanger]

I have a fully functioning Excel 2007 spreadsheet with a few macros and VBA code utilised to achieve a result.
A couple of days ago, I bought a new laptop and also bought Office 365 to install.
I have done the installation of the Office application and now my macros/VBA are having difficulty running on the new Office 365 Excel platform.
What do I need to do to have my 2007 spreadsheet working in the new Excel app?

Please assist.

Regards...GSDANGER

 

[gsdanger]

Further to my excel problem previously stated.
I am getting a "run-time error 52 Bad file name or number"

The following code is highlighted...

Public Function outputtext(text As String)
Dim MyFile As String, fnum As String
MyFile = ThisWorkbook.Path & "\temp.txt"
fnum = FreeFile()
Open MyFile For Output As fnum
Print #fnum , text
Close #fnum
End Function

The line in bold is where the code stops...
Does this assist in nutting out what I need to do? I hope so.

Regards...gsdanger