A corrupt excel spreadsheet can be repaired by using Open and Repair technique. It is a built-in repair function that opens a corrupt excel file forcefully.  *Open MS Excel > press Ctrl+O > locate corrupt excel spreadsheet and select it. *Click on the arrow shown beside Open button > select Open and Repair. It will take just a few seconds to be completed and selected file will be opened, if possible.   Or of you don't know how to repair an excel file take a look at   [URL] [URL]
I was doing my complicated sheet in Excel during some hard days, something very bad has happened. The data from it was only completely disappeared. I don’t actually know what to undertake.
what happened with excel?