How do I download and save a YouTube video offline?

Watch videos offline on mobile in select countries & regions - Android

Download videos to watch offlineGo to the video Watch page.Below the video, tap Download or tap More. Download.Once the video is downloaded, Downloaded will turn blue below the video.
Source : https://support.google.com/youtube/answer/6141269?hl=en&co=GENIE.Platform%3DAndroid

How do I get Chrome to open PDF files automatically?

How to Open PDF in Chrome Automatically | WPS Office Blog

Step 1: To begin, open the Chrome browser on your system and click on the Three dots" located in the top right corner of your Chrome browser screen. Step 2: Next
Source : https://www.wps.com/blog/how-to-open-pdf-in-chrome-automatically/

What does Alt+F11 do?

Excel keyboard shortcuts and function keys - UC Washington Center

F11 Creates a chart of the data in the current range in a separate Chart sheet. Shift+F11 inserts a new worksheet. Alt+F11 opens the Microsoft Visual Basic For Applications Editor, in which you can create a macro by using Visual Basic for Applications (VBA). F12 Displays the Save As dialog box.
Source : https://www.ucdc.edu/sites/default/files/uploads/documents/IS/User%20Docs/Excel%202016%20for%20Windows%20keyboard%20shortcuts.pdf

How to download a file for free?

Download File from URL Online - WebsiteDownloader.com

Here's how you can do it:Copy the URL of the file you want to download.Paste the URL into the input field on our webpage.Click on the 'Download' button.Wait for a few moments while our tool processes the file.Once the file is ready, click on the 'Download File' button to save it to your device.
Source : https://websitedownloader.com/download-file-from-url-online/

What is Ctrl+R?

What is Ctrl+R? | Lenovo USOutlet

Ctrl+R is a keyboard shortcut that is commonly used in web browsers to reload the current webpage. It's a quick way to refresh the page if something isn't loading correctly or if you want to see any updates that may have been made since you last visited.
Source : https://www.lenovo.com/us/outletus/en/glossary/ctrl-r/

Why can't I open a PDF file in Google Chrome?

Troubleshooting Chrome PDF Viewer - University of Houston-Downtown

Clear Browser Cache and Cookies An outdated or corrupted browser cache is a common reason for elements on a web page, including PDFs, to not display correctly. Clearing your browser cache should prompt your browser to download up to date content and hopefully fix the issue with rendering your PDFs properly.
Source : https://www.uhd.edu/computing/training-lms/troubleshooting-chrome-pdf-viewer.aspx