I have an Excel Spreadsheet that contains all my data that I need to put into an SQL Server database. I am fairly new o ASP.NET and have never had to export from Excel to SQL Se
You can do this easily using SSIS, you can refer to these two links for full details.
[EDIT]
If you have Express then you can try the below commands to setup a linked server and get the data
EXEC sp_addlinkedserver ExcelData,'Jet 4.0','Microsoft.Jet.OLEDB.4.0','C:\MyData.xls', NULL, 'Excel 5.0;'
GO
Then you can select the data into your tables
INSERT INTO Listings ...
SELECT column1 AS intListingID, FROM ExcelData...Data
GO
For other options check this link