amirmahdiyar/exceler

Exceler is a .NET spreadsheet import/export library. Applications configure typed profiles and register services, then pass workbook streams to import rows lazily (or in chunks) through parsing, validation, and processing, or export model streams through a selected writer engine. The OpenXML engine streams workbook output and supports styling and dropdown validation sheets; EPPlus provides an alternative DOM writer and backs reading. The README also documents async processors, converters, RTL, and EF Core streaming extensions. Some capabilities are documented but their implementation paths were not sampled.