For those users who are looking for free solution, they can try few easy manual tricks which require no paid software or any other cost. Refer to this blog post to know how to repair Excel file manually - Few Easy Tips & Tricks to Repair Excel File Manually | N. Sem's Blog
One can try to extract data of the chart from a corrupt spreadsheet by using Macro. Also, one can try to recover data from corrupt Excel file by converting it into SYLK or symbolic link format. Note: To open a corrupt Excel file, one can try OpenOffice Calc program. Also, one can try Open and Repair feature of MS Excel to open a corrupt Excel file.
I hope the shared information would be helpful here.
Thanks and best regards.