Write data to a file or to a stream in Excel XLSX Worksheet format.
-
Updated
Jul 27, 2026 - C#
Write data to a file or to a stream in Excel XLSX Worksheet format.
Validate basic rules in an Excel Workbook (XLSX) from a file of from a stream as of Open XML SDK Validator.
Read Excel XLSX format file or stream and (1) get the list of found Worksheet tab names or (2) get the Worksheet’s cells data of an existing tab name.
Add a description, image, and links to the openxml-spreadsheet topic page so that developers can more easily learn about it.
To associate your repository with the openxml-spreadsheet topic, visit your repo's landing page and select "manage topics."