Created attachment 94461 [details]
Original and corrupted file
When you open a XLS file, do a small change, save the file, close it and open again all teh references to cells in diferente tabs are lost. All references to $Excursiones.A2 has changed to $Excursiones.A65539.
This only happend if you save the file in XLS format. In OD format works fine.
Attached file. The original and the corrupted.
Id. de compilación: d7dbbd7842e6a58b0f521599204e827654e1fb8
*** This bug has been marked as a duplicate of bug 74345 ***