Importing Excel into Oracle

[Rationalize]

Scenario:
7 users have access to an Excel Sheet.
Any user can use the coldfusion front-end and upload this excel file into an Oracle database.
Excel sheet has 30 columns, but when they click on Upload...only 5 0r 6 columns will be filled.
The rest will be null values in the database.
I'm not in a position to make use of Oracle External Tables neither can I run DB scripts to check for newer Excel Uploads.
As of now I need suggestions on the possible approaches.

Also when user clicks upload:
If col-1 has value then col-2, col-3 should have values and col-4, col-5 should not have any values.
There will be checks like these in place too.
Please suggest how do I check an .xls file if all these conditions are filled per row (assuming that there would be 40 rows per upload per user per day). Do I check the .xls file or do I check for these validations somewhere else, if yese where and how ??

[Newsgroup_User]

Please suggest how do I check an .xls file if all these conditions are
filled per row (assuming that there would be 40 rows per upload per user
per day). Do I check the .xls file or do I check for these validations
somewhere else, if yes where and how ??

Either on these forums of the House of Fusion forums, I recently read a
thread about using excel as a datasource. That may offer you some options.

The file could be uploaded to a given location. That location is
configured as a datasource. Use standard SQL operations against it.

[Rationalize]

Will try what has been suggested. Is there anything more conventional though?

[Newsgroup_User]

Why couldn't you upload the Excel and then use cfhttp to take it and turn it
into a query which you can loop into a database? I do that with CSV files
all the time. Wouldn't that work for Excel?