Almost assuredly you can. Note, however, that Excel is not a 'database,'
though people tend to use it as such.
What 'other database' do you want to export to?
If MS Access or SQL Server, they each have native tools that will simply
read the Excel file and directly import the data.
If it is something else that doesn't directly read Excel files, save your
Excel file as either a CSV (comma separated values) or Txt (tab delimited)
file by using the menu to choose File | Save As and then selecting the
appropriate file type from the drop down at the very bottom of the dialog
box. Once you've saved the file that way, virtually every database can
read/import your CSV or TXT file
Duke