I have .Net Core 5.0 API project contains another .Net Core Class Library.
Also I have exiting SQl Server Database.
How can create edmx using .net core project with my exiting databse?
C# and VS2019
EF Core do not support edmx. It uses attributes and Fluent API for defining schema and mapping.
Check this link how to work with existing database with EF Core.
https://learn.microsoft.com/en-us/ef/efcore-and-ef6/porting/port-edmx