How to upload and read an excel file (.xlsx) in a blazor server project - asp.net-core

Question

I have a blazor server project and I need to send an excel file with data to create objects of an entity. I have searched a lot and have not found anything that has worked for me. I believe my problem is accessing the file to then be able to do what I want.
In my blazor component i have:
<InputFile OnChange="#ImportExcelFile" accept=".xlsx" multiple="false"></InputFile>
#code {
async Task ImportExcelFile(InputFileChangeEventArgs e)
{
await EnrollmentService.CreateEnrollmentByExcel(e);
}
}
In my EnrollmentService.cs i need to read file.
If anyone can help me I would be very grateful.

Answer 1

I can already access my entered file, I was researching and found several ways but it didn't satisfy my requirements because they were trying to store the file in a folder, I just wanted to read the data and store it in memory, and I got this that helped me. Thanks.
async Task ImportExcelFile(InputFileChangeEventArgs e)
{
foreach (var file in e.GetMultipleFiles(1))
{
try
{
using (MemoryStream ms = new MemoryStream())
{
// copy data from file to memory stream
await file.OpenReadStream().CopyToAsync(ms);
// positions the cursor at the beginning of the memory stream
ms.Position = 0;
// create ExcelPackage from memory stream
ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
using (ExcelPackage package = new ExcelPackage(ms))
{
ExcelWorksheet ws = package.Workbook.Worksheets.FirstOrDefault();
int colCount = ws.Dimension.End.Column;
int rowCount = ws.Dimension.End.Row;
var s = ws.Cells[2, 2].Value;
// rest of the code here...
}
}
}
catch (Exception ex)
{
throw;
}
}
}