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 if this doesn’t work, one may take help of a third-party Excel Recovery software. I would recommend Excel Repair Kit software to recover data from corrupt excel spreadsheet. The software is available with free demo version. To read more about this software and to download its free demo version, visit: http://www.excel.repair/