Hi,
can you provide us how lost 1000 rows, are you deleted all the sheet faulty, or the sheet has been crashed without saving, or you had delete it then saved the sheet. Some clarifications will give you a straight answers
cheers,
Hi herb
I think there isn't problem to recover it as Excel save this option to recover unsaved workbook.
from File > Info > Manage Version > Recover Unsaved Workbooks then brows the file location to recover,
you can refer to the below link from official MSDN blog present your problem solving
How to recover that un-saved Microsoft Office Excel, Word, or PowerPoint file you closed before saving - Microsoft Senior Sales Excellence Manager - Eric Ligman - Site Home - MSDN Blogs
Thanks,