Disable all not-needed Excel add-ons
The more Excel add-ons you have installed on your system, the more unstable the Excel is. The best way to disable an Excel add-on is via the Windows Registry Editor.
2.Press the Windows Key + R
3.Type "regedit.exe" and hit Enter
4.User Account Control's screen warning you that this program requires an elevated system access shows up ("Do you want to allow the following programto make changes to your computer?") , press Yes.
5.On the left side tree, navigate to the subtree Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\Excel\Addins
and for each entry in this subtree you're do not want to use in Excel set the LoadBehavior to 0.
6.Repeat (4) for the subtree Computer\HKEY_LOCAL_MACHINE\Software\Microsoft\Office\Excel\Addins
7.Open Excel and all not needed addons are disabled
Set the US Regional Settings
Though Microsoft Windows, in theory, do support various cultures, in practice, there are too many problems left.
Consequently, setting of your regional settings to the settings of the USA is recommended in case you encounter any problems with anything even slightly related to different culture.
Copyright © 2013-2017 Jiri Pik
Document Version: Sunday, May 7, 2017