Hi,

I have a workbook with the following macros, all in "module 1". All the macros are activated via an ActiveX form button:
Sub CalcPartial()
Range("a1:t200").Calculate
End Sub
Sub CalcPL()
Sheet3.Calculate
Range("a1:t200").Calculate
End Sub
Sub DeleteInputs()
    Range("I3:I1941").ClearContents
End Sub
Sub CalcFull()
Sheet43.Calculate
End Sub
When I try to open the file (excel 2013, two different machines), it crashes upon opening. If I open it as a macro-disabled workbook, then there are no problems.
When I first put in the macros (the workbook was already open), there were no stability issues.

Any ideas what could be the problem?

Thanks,

Phillip