Top 20 NuGet import Packages

A library that allows you to define a schema that can be used to read and write XML files without writing any of your own methods.
SanJing.Excel
Forked Open Source library for automatic formatted file read/write operations www.filehelpers.net
Distribution client library
DbBridge for Entity Framework Core InMemory database (fot testing purposes only)
Simple executable to import a pfx certificate
Simple CSV importer into Umbraco 8 contents. Multilanguage is supported. Dashboard is located at Settings > CSV Import tab
Excel data importer that auto-detects headers and object type. See https://gitlab.com/NRade/FlexPorter for usage instructions.
Excel import helper
A preview version of a package to simplify import and export basic ordinary spreadsheets for .NET core
Reads an Excel file and creates a PowerShell object from it.
3d model file parsing components extracted from STLVault
DataStructers for Excel data import application