These are the listings closest to NFSe - Download em Lote in what they say they do. Comparable, not endorsed: the ranking is the catalog's, and the judgement is yours.
NFSe Baixar TudoDescribes nearly the same job, smaller audience · More sites but fewer permissions than the original187 users (last published figure)Compare side by side
NFSe Analyzer — PortalDescribes nearly the same job, smaller audience · More sites but fewer permissions than the original21 users (last published figure)★ 5.0Compare side by side
Baixa NotasDescribes nearly the same job, smaller audience · More sites but fewer permissions than the original944 users (last published figure)★ 4.3Compare side by side
Comparable listings are pre-computed from the meaning of each store listing, then shown with the audience and rating from our latest pass over the store. Access compares where each listing can run (every site, how many site patterns) and how many browser permissions it declares, against the extension it would replace. Narrower is not a verdict on safety: compare what each needs for the job.
GerirMEI - NFSe Fácil 239 users (last published figure)
Baixar NFSe Nota Fiscal de Serviço Eletrônica Emitidas e Recebidas 200k users (last published figure)
NFSe Baixar Tudo 187 users (last published figure)
NFSe Super: Download em Lote XML, DANFSe e Excel (Emissor Nacional) 20 users
NfseCloud - Baixar NFS-e em Lote 5k users (last published figure)
NFSe Analyzer — Portal 21 users (last published figure)
XMLote NFS-e 5 users
Baixa Notas 944 users (last published figure)