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var sw = Stopwatch.StartNew(); | |
using var wb = new XLWorkbook(); | |
var sheet = wb.AddWorksheet(); | |
// Lazy created data | |
var data = Enumerable.Range(0, 1_000_000).Select(_ => | |
{ | |
return Enumerable.Range(0, 10).Select(_ => "Hello world"); | |
}); |