Some day in MS-Excel if you find your activeX controls are not working which were working fine till yesterday. So don't worry try below fixes for such issues.
Goto below mentioned paths and delete .exd files and reopen excel.
- %appdata%\microsoft\forms
- %temp%\excel8.0
- %temp%\word8.0
- %temp%\PPT11.0
- %temp%\vbe
If still issue persist then goto Run type appwiz.cpl and click on view install updates from left navigation bar. And remove if there are any new updates have been installed for MS-Office recently.
Hope this will help you to resolve issue.
You can also download .msi file to fix this issue, You will get this fix at below link.
https://support.microsoft.com/en-us/kb/3025036
Write if you have any query.