Withdata Software provide some ETL (Extract-Transform-Load) tools for SQL Server:
FileToDB Load TXT, CSV, TSV, XML, JSON, Excel, SQL, RDF, INI data to SQL Server
DBToFile Export SQL Server data to TXT, CSV, TSV, XML, JSON, Excel, SQL files
DBCopier Copy data between SQL Server and other rational databases
MongoToDB Ease your MongoDB to SQL Server converting work
DBBlobEditor Edit / Import / Export BLOB data in SQL Server
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.