Hi Ryan,
a)Which web browser are you using?
Install Chrome on Windows. Download the installation file. If prompted, click Run or Save. If you chose Save, double-click the download to start installing. Start Chrome: Windows 7: A Chrome window opens once everything is done. Windows 8 & 8.1: A welcome dialog appears. Click Next to select your default browser. Java software for your computer, or the Java Runtime Environment, is also referred to as the Java Runtime, Runtime Environment, Runtime, JRE, Java Virtual Machine, Virtual Machine, Java VM, JVM, VM, Java plug-in, Java plugin, Java add-on or Java download. An upgrade moves your PC from a previous version of Windows — such as Windows 7 or Windows 8.1 — to Windows 10. This FAQ is intended to answer questions about upgrading to Windows 10. Most devices will take about an hour to upgrade as soon as the download is completed. Although older devices could take longer, some newer, high.
b)Were you able to open this file type before? Do you get any specific error message?
c)Does this happen with every download file or just this particular one?
Please provide the above information to understand the issue better; the following steps are worth a try:
Downloaded file may be corrupt. In that event, you will not be able to open it. Download the file again. This might solve the problem.
Security software may be blocking or hindering the file to open, firstly let us disable the security software and test
Step 1: Disable the security software, follow the steps mentioned below
Important: Enable the security software back once everything is done.
Step 2: Download the file onto a different location (on desktop) and test
Step 3: You may want to uninstall and reinstall the program that opens this file type.
Note: You may check with the program manufacturer for ways to reinstall and activate the software.
Thanks and Regards:
Xmllint Example
Ajay K
Microsoft Answers Support Engineer