Withdata Software provide some ETL (Extract-Transform-Load) tools for Access:
FileToDB Load TXT, CSV, TSV, XML, JSON, Excel, SQL, RDF, INI data to Access
DBToFile Export Access data to TXT, CSV, TSV, XML, JSON, Excel, SQL files
DBCopier Copy data between Access and other rational databases
MongoToDB Ease your MongoDB to Access converting work
DBBlobEditor Edit / Import / Export BLOB data in Access
Convert your data online, free
Free in-browser converters for CSV, Excel, JSON, XML and SQL: Withdata Online Data Conversion. Large files, batch conversion or scheduling? See the offline desktop apps, or browse all data conversion tools.