smartsheet-platform smartsheet-csharp-sdk by: smartsheet-platform .NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. 844,703 total downloads last updated 3/25/2026 Latest version: 6.6.6 Smartsheet Collaboration Project Management Excel spreadsheet Library that uses C# to connect to Smartsheet services.