Convert to CSV files-read CSV files, csv --

Convert to CSV files-read CSV files, csv --

Convert to a CSV file:

Http://www.dotnetgallery.com/lab/resource93-Export-to-CSV-file-from-Data-Table-in-Aspnet.aspx

Http://www.devasp.net/net/articles/display/1330.html

Http://stackoverflow.com/questions/16582993/how-to-save-a-datatable-as-a-csv-file-on-client-pc-asp-net

Http://www.aspsnippets.com/Articles/Export-DataSet-or-DataTable-to-Word-Excel-PDF-and-CSV-Formats.aspx

 

Read CSV files:
Http://www.dotnetfox.com/articles/parse-or-read-csv-file-using-textfieldparser-in-Asp-Net-1112.aspx

How to convert xls into a csv file

A more reliable method is to use vbprogramming to write a small program, open the xls file one by one, and save it as a csv file.
You can easily open the xls file one by one and save it as a csv file.

How to convert an xls file into a csv file

Open in excel,
Save the file
Select the xls format, that is, the first option in the file type option under the file name.
Then confirm