A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hello,
Let us refer to the following link ‘Recover an earlier version of an Office file’ and check if it helps:
As for the error message ‘'Excel cannot complete the task with available resources. Choose less data or close other application’, you may try the steps in the following article:
http://support.microsoft.com/kb/2655178/en-us
Note: The steps in the article also applies to Excel 2013.
In case if that doesn’t help, do get back to us with the results so that we may assist you further.
Thank you