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Unhandled error - Arithmetic operation resulted in an overflow (send key alt+down in excel)

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Posted on by it_rpa_kns

Hello I need help.

I just send key in Excel with "send key" or "push in my laptop keyboard and click in power automate desktop windows" it show this windows and error details

"

Message = Arithmetic operation resulted in an overflow.
Error = System.OverflowException
Full text = System.OverflowException: Arithmetic operation resulted in an overflow.
at System.Windows.Shell.WindowChromeWorker._HandleNCHitTest(WM uMsg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Shell.WindowChromeWorker._WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

I try to delete "Folder Power Automate Desktop" in appdata > local > microosft. it does't work. :'(

Please help.
Thanks.

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Power Automate Desktop

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Agnius Bartninkas Most Valuable Professional on at

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Which specific action does this happen on and what keys are you sending there?

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Srini007 3,483 Super User 2026 Season 1 on at

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Hi @it_rpa_kns

Passing the Keys in the excel GUI environment is some what difficult, because the selectors are not that much stable, Instead of GUI automation of excel software, its better to look if you can crack the solution using the excel actions available in PAD, That will perform without opening the excel and those are backend operations

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If this reply answers your question or solves your issue, please ACCEPT AS SOLUTION

Thanks,

Srini

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imkalp 10 on at

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Hi,

Can you pls elaborate more that which keys you are sending? and on what button you are trying to get control?

Thanks

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it_rpa_kns 9 on at

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I send this key

{Alt}({Down}{F}{E})%Date_Excel_Format%{Return} to Windows Excel

Raw Code
MouseAndKeyboard.SendKeys.FocusAndSendKeysByInstanceOrHandle WindowInstance: ExcelTPSContactFile TextToSend: $'''{Alt}({Down}{F}{E})%Date_Excel_Format%{Return}''' DelayBetweenKeystrokes: 100 SendTextAsHardwareKeys: False

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it_rpa_kns 9 on at

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Thank you for the answer.
I'll try using SQL Excute from an Excel file instead.

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it_rpa_kns 9 on at

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I send this key

{Alt}({Down}{F}{E})%Date_Excel_Format%{Return} to Windows Excel

Raw Code
MouseAndKeyboard.SendKeys.FocusAndSendKeysByInstanceOrHandle WindowInstance: ExcelTPSContactFile TextToSend: $'''{Alt}({Down}{F}{E})%Date_Excel_Format%{Return}''' DelayBetweenKeystrokes: 100 SendTextAsHardwareKeys: False

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I try to use filter column in excel with shortcut key (active column and use keyboard "Alt + Down" and " F , F" for select filter.

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