I have a ".xls" file that somehow has become damaged. This file was made using the Mac version of Microsoft Office. When I select Open > File the preview pane in Apple's Finder is showing my file!
But I can't get the whole thing in the preview pane ....
Any tips on repairing this file whether it's a software or a "via e-mail" type of service. This is a very important file that has not been backed up (I know!

)
I have found a ton of "xls" file repair programs for windows but I don't have access to a windows computer.
I tried to import it into Google Docs and into Zoho to see if either of those would get at the data, no luck. I even tried to open the raw text string in my text editor, nothing there ...
The file says 39kb and I know it has not been wiped because the preview pane in finder is showing part of my file!
Any help? Thank you SO much in advance. - David