Validating Excel Counts against Database Inserts
Not really.

Since Excel isn't a proper client server database, you can't ask it how many rows are there before bringing them in. You could bring them into a staging area and count rows as they come in. If they don't match and you need to handle that with a business process, the destination is untouched. If they meet your validation criteria, do a second transfer to the real destination. You can use a database table for this, or a raw file connection if you'd rather spill to the filesystem. Cache connection managers are useful if your dataset is reasonably sized.