[Proposal]: Introduce schema support into Excel adapter

[stloyd]

Describe the Proposal

Right now Excel adaptor doesn't allow passing Schema into the entry factory for every passed row, which can have quite big performance implications when reading bigger amounts of data.

Similar to: #1861

API Adjustments

Add to the ExcelExtractor:

    public function withSchema(Schema $schema) : self
    {
        $this->schema = $schema;

        return $this;
    }

So it can be passed further to array_to_rows()

Are you intenting to also work on proposed change?

Yes

Are you interested in sponsoring this change?

None

Integration & Dependencies

No response