How to mass-process AP reclasses with a spreadsheet upload

Accounting services frequently have to perform reclasses (or account overrides) on AP invoices. This method is preferred because the GL coding change remains attached to the subledger invoice record, unlike manual entries, which lack attachment or connection to the subledger detail.

I would like to inquire if there is a process, template, or functionality available to mass-process AP reclasses with a spreadsheet upload.