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Convert the uploaded files to specific file format which can not download

By : user3851409
Date : October 16 2020, 11:12 PM
wish of those help You have two options in this regard. The first is to move the files, through a PHP script, to a server-side folder outside of the server's web directory. The second is to store the files in a BLOB column in a MySQL table. Both will prevent users from accessing the files directly, without the need to convert the file to a not-so-easily-downloaded format.
code :

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How to convert an already-uploaded Excel file to Google's spreadsheet format?

By : Erin
Date : March 29 2020, 07:55 AM
will help you Unfortunately you cannot convert a file in-place, and you'll need to re-upload it. Here's a sample showing how to use an XLSX file already in your drive:
code :
function convert(xlsxFileId) { 
  var xlsxBlob = DriveApp.getFileById(xlsxFileId).getBlob();
  var file = {
    title: 'Converted Spreadsheet'
  file = Drive.Files.insert(file, xlsxBlob, {
    convert: true

Download files in pdf format no matter in what format they are uploaded

By : soumow
Date : March 29 2020, 07:55 AM
hop of those help? Specify the file as an "attachment" in the content disposition header:
code :
Response.AppendHeader("Content-Disposition", "attachment;filename=" + e.CommandArgument);

How do I download all files from S3 bucket that was uploaded on a specific date?

By : Afham Lafir
Date : March 29 2020, 07:55 AM
I hope this helps . You could use 'last modified date' property of S3 objects to filter them based on a specific date. Here is an example using Java API:
code :
ObjectListing listing = s3Client.listObjects('my_bucket_name');
List<S3ObjectSummary> objectSummaries = listing.getObjectSummaries();

for(S3ObjectSummary s3ObjectSummary: objectSummaries) {
   if(s3ObjectSummary.getLastModified().equals(today) {
     //download this file
     s3Client.getObject('my_bucket_name', s3ObjectSummary.getKey());

How to display uploaded files in GridView and download them on clicking respective download linkbutton?

By : dbliu
Date : March 29 2020, 07:55 AM
like below fixes the issue Also your code is very messy
Try changing it to something like this for the insert :

How Can I convert a uploaded pptx/ppt file to XML format in C# using OpenXML?

By : Joel
Date : March 29 2020, 07:55 AM
This might help you A pptx file is essentially a zip file, renamed to pptx. If you rename and extract the content you can find the xml document.
With ppt you have more problem as it is proprietary to Microsoft and may not even be publicly documented. Office automation would most probably work, but rather complicated.
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