Nodejs download xlsx file corrupted

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Single Click on Extract if you want to extract data from Excel files. By using these methods you can fix the damaged XLSX format files. Open File Tab and Click on Options. Now Click on Formula. Select Manual option and Click on OK.

In the first cell type! After generating the workbook, can you write to some file on the server side for example, fs.

Sorry, something went wrong. I have the same corruption issue when writing my document. I am editing the cells according to the documentation, and my Excel files output can be read, but I get almost every time the corrupt message error.

Here is what i found : if i console log wbout, i get wrong characters that may the cause of the corruption. I think the problem is not the actual writing of the file but the sending to the client. When I open the downloaded file in a texteditor and compare it to the written on the server, I can see that they have different hex codes.

So, after all this might not be an Issue with js-xlsx but with expressjs or what ever. I read alot about disabeling the live-reload component but that did not do the trick for me. Still, I would be very thankful for any help on this matter! I think this is actually an issue in angularJS and has nothing to do with this project. Thank you anyways!

Similar issues have come up before. If you don't mind, can you put together a very short and simple example using Angular that we can reference later? Working fine with ResponseType as arraybuffer in Angular 5 for a xlsx file. My final code: return this. Any thoughts? I faced a corruption issue when sending the written xlsx as a buffer out through express, but encoding as base64 solved it:.

Yes I tried that before resorting to using base64 as I'm aware of the huge inefficiency in that approach but, no, it didn't work.

I'll switch it back and gather more information. So with buffer output I just get the unable to read file malarkey in excel. There appears to be some strange subtle differences in the files and if hexdumps mean anything to you I'll be able to get the headers of good and bad files to compare tomorrow.

Add a line. That should always give a buffer:. Don't worry, it's clearly something weird and hopefully only specific to our use case. When I have a chance to go on a debugging expedition I'll update you. If it is valid, then there must be an issue in the client code. It provides a saveAs function that the write demos use. If angular isn't messing with the raw binary data, I assume something like this could work.

Then I try to impelemnt download file binary from server. Could you please tell me what I do wrong on client code?