Freeware library to create Excel files Posted on January 14, 2019 by Angel Reply https://github.com/dotnetcore/NPOI Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)MoreClick to share on Reddit (Opens in new window)Click to share on LinkedIn (Opens in new window)