What does it mean when one of your apps won't open?

Why App Won't Open on Android Phone? Fixed! - iMobie

The possible causes of the app won't open on Android might be no internet connection, the lack of storage space, corrupted software, data crash, and the outdated operating system version of your Android.Feb 16, 2022
Source : https://www.imobie.com/android-system-recovery/app-wont-open-on-android-phone.htm

How do I download and save a video from YouTube?

How to Download YouTube Videos

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Source : https://m.youtube.com/watch?v=dCNTQmbqFSs

How do I download a file?

Download a file - Android - Google Chrome Help

Download a fileOn your Android phone or tablet, open the Chrome app .Go to the site where you want to download a file.Touch and hold what you want to download, then tap Download link or Download image. On some video and audio files, tap Download .
Source : https://support.google.com/chrome/answer/95759?hl=en&co=GENIE.Platform%3DAndroid

Are deleted photos gone forever?

Delete photos & videos - Android - Google Help

Photos and videos that were permanently deleted can't be restored.
Source : https://support.google.com/photos/answer/6128858?hl=en&co=GENIE.Platform%3DAndroid

Is Free file viewer legit?

FreeFileViewer Reviews & Product Details - G2

The FreeFileViewer application is slightly slower opening files than Office or Adobe. The GUI is a little generic looking, but other than that, it's a great program. I would still recommend it to anyone that wants to save money on annual licensing fees. Review collected by and hosted on G2.com.
Source : https://www.g2.com/products/freefileviewer/reviews

How do I download a PDF from Google?

Create, view, or download a file - Computer - Google Docs Editors Help

pdf file on Chrome:On your computer, open a Google Doc.At the top, click File. Print.At the left, next to Destination
Source : https://support.google.com/docs/answer/49114?hl=en&co=GENIE.Platform%3DDesktop