XData Handle

[jdouglas]

I have LT 2012.  I use Excel 2010 into my drawings to set up tables.  When I opened the drawing I've been working on, I had lost all of yesterday's data.  Command History shows dozens of these notations, "AcDbLine(41859) XData Handle Unknown, Null"   In Help it says you can no longer turn handles off, so it should be ON.  How can I point the drawing to my Excel data?

[pendean]

Did you move, delete or rename either the Eccel or the DWG file?

[jdouglas]

I definitely did NOT change the name of the Excel document, nor did I move it. I'm 95% sure I did not change the name of or move the .dwg.