title: Filtering and saving data to database from excel file (Blazor Server)
body: <p>I'm trying to filter an excel file and save the filtered data (as data objects) to a MySQL database. I tried to filter the excel file with the Spire XLS package which worked well. The only problem is that when I use an excel file with 30.000 lines it takes about 15 minutes to filter the file.</p>
  <p>I am trying to look for a solution that filters this excel file in seconds. I was thinking of using a dataframe for this but then I still need to convert the excel file to the dataframe. I am unsure how long this convertion process will take. Any suggestions for this problem are much appreciated.</p>