3 packages tagged with “large-files”
An memory efficient Excel Xlsx file reader designed for processing large Xlsx files.
A .NET 8 library for reading CSV files with dynamic column mapping and large file support (up to 1GB). No external dependencies.
VelocityExcel is a high-performance, ultra fast, streaming Excel (XLSX) reader and writer for .NET with minimal memory footprint. ✓ The only Excel library that delivers ultra-high-speed read and write operations with the lowest memory consumption. ✓ Forward-only streaming read/write (no loading entire file into memory) ✓ Culture-aware parsing of dates, times, durations, numbers, and booleans ✓ Shared string deduplication with overflow protection ✓ Precise ECMA-376 format detection for date/time/duration values ✓ Safe XML parsing ✓ Zero external dependencies Ideal for processing large Excel files in ASP.NET, ASP.NET MVC, ASP.NET Core, Blazor, Web API, Windows Forms, WPF background services, or CLI tools.