Download | Excel File From Base64 String C# [top]

In modern web applications, you usually want to return this data so the user's browser triggers a "Save As" dialog. Using Controller Action Results

: If the string comes from a browser's FileReader , it may include a prefix like data:application/vnd.ms-excel;base64, . You must remove this prefix before decoding, or the conversion will fail. Decoding Logic : download excel file from base64 string c#

Downloading an Excel file from a in C# is a common requirement when dealing with file transfers via APIs or databases. The process generally involves decoding the string into a byte array and then returning it as a downloadable file through a web response or saving it to the server. Decoding Base64 Strings to Bytes In modern web applications, you usually want to