Option 1. Import Utility: I guess there is an import utility in TOAD under the Database Menu. Almost all file types can be used. Not sure about xls files. If not possible, convert them to csv files.
Option 2: SQL Loader in TOAD This is a much better one, which I have used many times. Just convert the .xls to.csv (Just do a 'save as' .csv). Then take the SQL Loader Wizard from DBA Menu.
Build a control File or create one of your own. Click next, add source file. (input, bad, control files). Then Load.
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