necesito desarrollar poder llevar documentos de excel a c# y guardarlos en postgresql

I need to develop the ability to transfer complex Excel documents containing more than 1,000 rows of data from Excel to C# and save them in PostgreSQL. This project needs to be done within 3 days. It requires a skilled professional with extensive knowledge in Excel and programming, as well as experience in working with PostgreSQL. Accuracy and efficiency is essential for this project, as I need to ensure that the data is accurately transferred and saved properly. The successful applicant must work quickly and be available to work within the timeframe specified.