Not with any level of certaintity there isn't. You have the last modified
date/time in File|properties but this won't tell you which data are changed
only that the workbook was changed on a certain date.
If this is important to you then for the future you may consider
time-stamping data entries with VB code and if you need that post back with
details and i'm sure someone will help.
You could find the last saved date/time which might tell you something
assuming you have a backup of the version at cutoff date for comparison.
Sub dateit()
ActiveSheet.Range("A1").Value = "Last Saved : " & _
Format(ThisWorkbook.BuiltinDocumentProperties("Last Save Time"), _
"yyyy-mmm-dd hh:mm:ss")
End Sub
For future reference you can use the Track changes feature of Excel - jus
that after tracking changes, the workbook gets "shared" and some features
may be unavailable. Please read up more in the Help menu