Which app can I use to view Documents?

How to use Google Docs - Android - Google Docs Editors Help

Try Google Workspace today! You can create, view, and edit Google documents, as well as Microsoft Word® files, with the Google Docs app for Android.
Source : https://support.google.com/docs/answer/7068618?hl=en&co=GENIE.Platform%3DAndroid

How to change download settings on Mac?

Change settings in App Store on Mac - Apple Support

To change these settings in the App Store app on your Mac, choose App Store > Settings. Check for downloads and install updates automatically. Automatically download apps that you purchased from the App Store on other Mac computers and devices (supported iOS, iPadOS, and tvOS apps only).
Source : https://support.apple.com/guide/app-store/change-app-store-settings-mchlp2257/mac

How to download a PDF without opening it in the browser?

How to use the Chrome PDF viewer | Adobe Acrobat

Navigate to Settings › Advanced › Privacy and Security. Click Site Settings › PDF Documents. Locate the toggle switch next to “Download PDF files instead of automatically opening them in Chrome. Turn the toggle on to have PDF files download, or turn it off to view files within your Chrome browser.
Source : https://www.adobe.com/acrobat/resources/chrome-pdf-viewer.html

Is the Y2Mate YouTube downloader safe?

Is Y2Mate Safe? How to Remove Y2Mate Virus? - SnapDownloader

Is Y2Mate a Safe YouTube Downloader? Y2Mate is a legitimate website but not a safe YouTube downloader. The website does a great job of grabbing content from various platforms and formats. Unfortunately, this doesn't make it a safe choice.Sep 18, 2023
Source : https://snapdownloader.com/blog/y2mate-virus

What is F1, F2, F3, F4, F5, f6, F7, F8, F9, f10, F11, F12?

F1 to F12: The Time-Saving Function Key Shortcuts You Need To Know

F1 – Opens the Help screen for almost every program. F2 – Allows you to rename a selected file or folder. F3 – Opens a search feature for an application that is active at the moment. F4 – Alt + F4 closes the active window. F5 – Allows you to refresh or reload the page or document window.
Source : https://www.cloudplusit.com/f1-to-f12-the-time-saving-function-key-shortcuts-you-need-to-know/

Why can't I open a downloaded file on my iPhone?

Why are PDF files greyed out on my iPhone - Adobe

iPhones can't open greyed files. When an iPhone can't open a specific file type, it greys out the file in your selector, making it unclickable. This will happen if you don't have the right viewing software downloaded to your device. The most common type of greyed-out file on iPhone is a PDF.
Source : https://www.adobe.com/acrobat/hub/why-pdf-files-are-grey-iphone.html