How to restore and SAVE xlsx the file?

Is it possible to restore the excel-file from Office 2013? The file was on a flash card, something in it glitched. the file ceased to open in Excel. I read much on the Internet, I tried many different programs - really opens only version 5,76 ExcelFix tool. But it paid and a very expensive to opening of one file ($140). And Demo version only opens, but doesn't keep :( Maybe still there are what effective methods or not expensive?
 
The program supports the documents created in Microsoft Office from version 95 and to 2013, and will correct the documents Microsoft Word, will return the tables Excel®, will return presentations of PowerPoint® and will restore letters, contacts and Outlook® notes. Qualitative algorithms of recovery of data will help to return data from strongly damaged documents which didn't manage to be processed to the means of the restoration which have been built in Microsoft Office.
 
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