C# download excel file from url to stream

To open and work with an Excel document, you create an instance of the SpreadsheetDocument class from the document. After you create the instance from the document, you can then obtain access to the main workbook part that contains the worksheets.

To create the class instance from the document, you call one of the Open methods. Several are provided, each with a different signature. The sample code in this topic uses the Open String, Boolean method with a signature that requires two parameters.

The first parameter takes a full path string that represents the document that you want to open. The second parameter is either true or false and represents whether you want the file to be opened for editing. Any changes that you make to the document will not be saved if this parameter is false. After you have opened the spreadsheet document package, you can add a row to a sheet in the workbook.

Tingo Tingo 6 6 silver badges 11 11 bronze badges. I stripped Dalla's answer a bit. I'm posting my version below — Ricardo Appleton. If you are looking for a. NET Core version of Dallas's answer, use the below. Add "Content-Length", fileResp. Andreas Paulsson Andreas Paulsson 7, 3 3 gold badges 23 23 silver badges 30 30 bronze badges.

So what was missing was: Response. Oliver Fink Oliver Fink 1. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.

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Post as a guest Name. Email Required, but never shown. The Overflow Blog. Who owns this outage? Building intelligent escalation chains for modern SRE. Podcast Who is building clouds for the independent developer? Featured on Meta. Now live: A fully responsive profile.

Reducing the weight of our footer. The following example shows you how to query a SQL Server database, buffer the output to a MemoryStream, and then have that data transferred to the browser as a Tab-Delimited text file.

The first step in this example is to query the data out of the database and put it into a MemoryStream.

The following function give shows how this can be done. IsDBNull counter? GetValue counter. Flush ; sw. Close ; sc. The previous function solves the requirement of dynamically retrieving data from a database and buffering the data.

Now the only thing left to do is to take the buffered data and send it on its way to the client as a text file. The following snippet shows how this is done. Flush ; mstream.