Editable Word document in ASP.Net Core

I am checking it. I will get back to you soon.

Hi daanishtest,

I am researching on it. It will take little time.

i will wait 

I have verified it. There is no free api available for this.

You need to use any 3rd party library like Spire.Doc or Aspose which supports editing document file.

https://www.e-iceblue.com/Tutorials/Spire.Doc/Spire.Doc-Program-Guide/NET-Edit-Word-Edit-Word-Document-in-C-and-VB.NET.html

https://www.e-iceblue.com/Tutorials/Spire.Doc/Demos/Quick-guide/Word-Editing-for-C-VB.NET.html

https://products.aspose.app/words/editor

Or WOPI library.

https://learn.microsoft.com/en-us/microsoft-365/cloud-storage-partner-program/online/overview

https://github.com/OfficeDev/PnP-WOPI