Excel backend for Regira Office, built on ClosedXML. ExcelManager implements IExcelService, reading and writing rows as dictionaries; it has no typed sheets. Of the four Excel backends it is the only one whose headers argument narrows a read to the named columns.
<PackageReference Include="Regira.Office.Excel.ClosedXML" Version="6.*" />
Apache License 2.0 — this package contains no license validation and no runtime limits. See LICENSE. A few companion packages are commercially licensed with a free tier; see the licensing overview.