C# read excel file from stream

It simply doesn't work like that. Thank you!! It is really helpful I 'll be grateful if you can also share the code to read the excel file on other remote pc not local pc , for which IP, username ans passwords are known. Thanks in advance!! Great post, I'd just suggest xlWorkbook. Close 0 ; to avoid waiting for ever for it to invisibly prompt you for the filename to save as.

I have some additional question, how about for the import to db the excel that been read by the app? Workbooks Excel. ReleaseComObject xlWorkbook ; Marshal. ReleaseComObject xlWorkbookS ;. You can try with number of code samples for many Excel features in this library. Last Updated: October 27, Read Excel File in C excel. Create a COM object for everything that is referenced Excel. Add Spire. Worksheet object by using the WorkSheet properties of Spire.

After that, write text in cell by take advantage of Range properties of Worksheet. Then call the method SaveToStream of the Spire. Workbook object and save all the data which is in XLS format to stream.

Load data which is in. Workbook object. Program Guide for. Document Operation. Mail Merge. Page Setup. Page Background. Image and Shape. Header and Footer. Program Guide for WPF. Quick Start for. In the following example, we use FileStream in combination with StreamReader.

In the example, we read a text file. When we use StreamReader , we do not need to do the decoding of bytes into characters.

We pass the FileStream to the StreamReader. If we do not explicitly specify the encoding, the default UTF8 is used. We read the data with the StreamReader's WriteLine method. It returns the next line from the input stream, or null if the end of the input stream is reached.

The CopyTo method reads the bytes from the current stream and writes them to another stream. The example uses the HttpClient to download a small image file. A region of memory. When this method returns, the contents of this region are replaced by the bytes read from the current file stream. This can be less than the number of bytes allocated in the buffer if that many bytes are not currently available, or zero 0 if the end of the stream has been reached.

Use the CanRead property to determine whether the current instance supports reading. Use the ReadAsync method to read asynchronously from the current stream. This method reads a maximum of buffer. Length bytes from the current file stream and stores them in buffer.

The current position within the file stream is advanced by the number of bytes read; however, if an exception occurs, the current position within the file stream remains unchanged. The method will block until at least one byte of data can be read, in the event that no data is available. Read returns 0 only when there is no more data in the file stream and no more is expected such as a closed socket or end of file. The method is free to return fewer bytes than requested even if the end of the file stream has not been reached.