C#, Winforms, Coding

[Hoang Anh Quoc]

what should i do now when i run the program and it has this error : " Exception from HRESULT: 0x800A03EC "

[Lost User]

You could start by asking Google what the error code means. Then go back to your code, to the line where the error is produced, and try to work out what is wrong with your code or the data it is working on.

[Andre Oosthuizen]

Your error seems to be excel related, you did however posted a one liner and expected the world to mind read what you meant. I googled the error and it popped up with multiple solutions - Save me from this error[^] and by selecting the first solution on SO, easy to fix - My error is fixed![^]