What Office Excel version? What Oracle Database version? SQL Developer version?
As long as I remember, you can connect excel with an oracle database since many years ago, and handle data like another excel datasheet (with its limitations, of course). I'm sure they've improved this feature.
Another solution is to buid the query by hand. Using an advanced text editor/IDE, such "Notepad++", and scripting the task its easy.
I do this in my job sometimes.
You have in a excel file the past month sells summary, where there are only Reference numbers, and you want to obtain the items descriptions from the database.
Then select them, copy, and paste into notepad++
Next. Put the cursor in the beginning and press the "record" button (Or menu "Macro" > "Start Recording"). Then by using special text keys you can format as it needs. For our case, we need to format those rows into a "IN" clause syntax. So, we type: Single quote ('), "End" key, single quote ('), comma (,), blank space, "Delete" key. Then, press "Stop" recording.
Now just press the "Play" button to reproduce the secuence you've recorded as many times as we need (or press the "double Play" button to reproduce until end of file)
finally You can write the whole query with the where-in clause
And thats it. Run this query in SQL Developer, and export the results in XLS format (right click in the results grid >> export)
BUT, if your everyday work consist in cross many excel data with the database, this is not the most appropriate and professional solution. This can save you a couple of times, but If you're going to do this EVERY DAY, then you must talk to the person in charge of the security policy, or your database administrator, and explain him your problem. If you need a ODBC connection (or another kind of special privilege) for your everyday work and you are not allowed to have it, its like if you're a lumberjack and are not allowed to use an axe just because its dangerous.