Excel file corrupted during download

Collectives on Stack Overflow. Learn more. Excel file get corrupted while downloading from server using java Ask Question. Asked 8 years, 5 months ago. Active 4 years, 3 months ago. Viewed 3k times. Improve this question. I have added catch to find out the problems during downloading and want to show proper massege to user. I had got the solution. I had removed the " response.

Add a comment. Active Oldest Votes. Improve this answer. Ralph Ralph 2 2 silver badges 4 4 bronze badges. I did it as a maven project. IOException; import java. Arrays; import java. List; import javax. HttpServletResponse; import org. Controller; import org. RequestMapping; import org. In that case, you can take the assistance of Stellar Phoenix Excel Repair to get positive results in less time. If you don't want your Excel documents to get damaged or corrupt, then you can take some precautionary measures.

Here are some tips that are used by experts to avoid such an unwanted situation. There you go! After following this guide, you would be able to fix corrupted Excel files in seconds. As you can see, from all the provided solutions, Stellar Phoenix Excel Repair turns out to be an ideal choice. It can repair all kinds of Excel files that are damaged under different scenarios. The existing data like its formatting, charts, graphs, images, etc. Go ahead and try it and feel free to share this guide with others as well to teach them how to fix Excel seamlessly.

What causes an Excel file to get corrupt? Unexpected power shutdown when the file was still in use. A virus or malware attack can also corrupt your Excel file and make it harder for the system to read it. If the file has been mishandled by any third-party tool, then it can also cause some unwanted problems. If you have forcefully changed the extension of the file or converted it using any other tool.

Sometimes, an Excel file can also get corrupt during the transfer copy-pasting from one location to another. A bad or previously corrupted sector on the hard drive or any other storage unit is another commonly faced reason for a corrupt file. An Excel file can also be corrupt when a wrong formula leading to an infinite loop is supplied. Your file can get corrupt during the saving or editing process as well that is when the file is closed unexpectedly while it is still being used.

The tool can fix corrupted Excel files under different scenarios and of all the leading formats. The cell formatting, overall layout, worksheet properties, applied formulas, and all the additional data would be recovered. Furthermore, the tool can also repair charts, tables, images, cell comments, filters, and so much more.

The interface provides a real-time preview of the recovered files so that users can verify the data before restoring it.

Offer excellent search options to find corrupted files instantly. Preview and recover all the data contained in the corrupted files. Repair files are corrupted due to different causes and from all devices. Try It Free. Always create a backup of your files. While saving your Excel document, you can go to its General Options. From here, you can enable the "Always Create Backup" option to turn on automatic backup.

Make sure that you have an active anti-virus and anti-malware software installed on your system. This will make sure that your Excel file won't get corrupt by any virus. Save your options and load a file again to avoid any unwanted error. Keep your Excel updated. Ideally, it is not recommended to use obsolete versions like Excel or Asking the microservice to save the generated Excel in a file within the server and then opening such file hereby file A in Excel shows that file A is not corrupted.

Asking the main backend server to save the Excel file that it receives from the microservice in a file within itself and then opening such file in Excel hereby file B shows that file B is not corrupted.

Downloading both file A and file B through FileZilla from their respective servers yields completely uncorrupted files. As such, I believe it is safe to assume the Excel becomes corrupted somewhere between the time the file is received on the frontend and the time the user downloads such file. Additionally, the Catalina logs do not evidence any error that might potentially be happening.

However, none of the workarounds detailed were successful in solving my issue. Attached is the code I am using to both obtain the Excel file from the backend and serve it to the user. Additionally, please do take into account the code has been altered to remove information I do not wish to make public. Hereby is the code to prompt the user to download the Excel. Please do note that I have also attempted to download without resorting to FileSaver, with no luck.

Any help on this issue would be appreciated. Any additional information you may need I will be happy to provide. Check this for more details: Creating a Blob from a base64 string in JavaScript. How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

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