Excessive custom XML data in PowerPoint file

If the “Custom XML data” in your presentation contains more than 2,000 parts then you will see a warning appear in Slidewise. This many custom XML parts is unusual, and we’ve seen evidence that it can cause performance issues with your file.

If you are seeing this warning, and you’ve also noticed your file is slower to work with than you’d like, then we’d be very interested to take a look at the file and see if we can fix it.

If you can share the file with us, please use the form below to send it directly to us. Alternatively, if you'd like to speak to us first - please get in touch through our support form.

Once your file is submitted we will treat it in the strictest of confidence. We will be automatically notified that you have uploaded a file and get back to you as soon as we can.

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