Android file questions, answered

Last reviewed: September 20, 2026 · Markdown version

One answer per question, written from the documentation rather than from memory, and saying where the app itself fits only where it honestly does.

Where do downloaded files go on Android?

Chrome saves a download to your default download location, and the Files app shows everything you have downloaded.

What is “All files access” on Android?

All files access grants read and write access to all files in shared storage.

Why apps can't open Downloads on Android 11

For apps that target Android 11 or higher, the folder picker cannot grant the Download directory, the root of internal storage, or an SD card root.

Why does a background app stop running on Android?

Doze defers background CPU and network activity when a phone sits unused; App Standby defers it for apps you have not used recently.

Android app standby buckets, explained

Android puts every app in one of five priority buckets by how recently and often you use it.

Where do deleted files go on Android?

In Files by Google a deleted file goes to Trash for 30 days, except from the Junk files card.

How to find duplicate files on Android

Files by Google finds duplicates under Menu then Clean and sends what you remove to Trash.

Why moving a file is really copy then delete

Within one filesystem a move is a rename and the data stays put.

What is scoped storage on Android?

Apps that target Android 10 and higher get scoped access to external storage: their own directory plus media they created.

Where are screenshots saved on Android?

Photos app, then Collections, then On this device, then Screenshots.

Why is my phone storage full?

Look first: Files by Google shows used and available space under Menu then Clean, and names the culprits: downloads, duplicates, large files, old….

Before you let an app move your files, ask this

Four questions for any file-moving app: does it copy before deleting, can you undo it, is the permission it wants permitted, and will it admit being….

How do I see all the files on my Android phone?

Browse the storage itself rather than the category tabs — and the three documented reasons a file can be on your phone and show up nowhere.

How to move files on Android

The documented steps in Files by Google, moving to an SD card, and what goes wrong: interrupted moves, folders Android will not let an app pick, and….

Should I clear my Downloads folder?

Not blind — that folder can hold installers and irreplaceable documents in the same list.

How to give an app All files access on Android

It is a special app access, switched on from a system settings page the app sends you to — the steps, how to take it back, and how to decide which….

How do I free up space on Android without deleting apps?

Measure in Settings first, then work through downloads, chat media, large files and duplicates — and archive an app rather than uninstall it.

Where are WhatsApp media files stored on Android?

WhatsApp's help names the folder: WhatsApp/Media, on internal storage or the SD card. Plus the hidden voice-notes folder, and why other apps cannot open it.

How do I organize photos on an Android phone?

Photos live in two systems at once — folders on disk and albums in a gallery app — and knowing which one you are editing is most of the battle.

How do I sort files by type and date on Android?

Type and date are two different jobs on Android: one decides where a file lives, the other only changes the order of a list.

Where are documents stored on Android?

There is no single Documents folder that every app uses — files land wherever the app that saved them chose.

What is a "junk cleaner" on Android, and do you need one?

What Android's own documentation says about the temporary files these apps clear, what the system already does with them, and the honest case for….

How do I use the Files app on Android?

The phone's own file manager — Files by Google, or My Files on a Galaxy — what its views are for, how search and sorting work, and what it cannot….

How do I sort photos in the Android gallery?

A gallery app shows images from several folders at once, which is why it fills with pictures you never took.

How do I find my screenshot folder?

Where the gallery shows them, where Android's documentation says the folder usually sits, how to reach it from a computer, and why the screen-capture….

How do I access my Samsung files on my computer?

The cable method Android documents step by step, Samsung's own name for the USB option, the wireless alternatives, and what a computer can and cannot….

How do I clean junk off my Android phone?

What the word "junk" actually covers, the two built-in tools that handle most of it with Google's own warnings attached, and the large category that….

How do I uninstall the Samsung My Files app?

You cannot — Samsung lists My Files among the essential apps that cannot be deleted.

How do I put Google Photos in chronological order?

The main view is laid out by date, and the date is editable.

What format does Android use?

Two different questions hide behind that one — the filesystem underneath, and the file types Android opens.

What is Google Photos "Free up space"?

It deletes the copies on your phone and keeps the ones online — which is exactly what most people want and occasionally a nasty surprise.

How do I rename files on Android?

The exact steps in Files by Google, why Google's help has nothing on renaming many files at once, why the extension matters, and the case where….

How do I create a folder on an Android phone?

In Files by Google a new folder is made in the middle of a move or copy; on a Samsung phone My Files also has a direct Create folder.

Why can't I see my WhatsApp images in the gallery?

Four things to check — the Media visibility setting, a chat's own setting that the global switch leaves alone, the .nomedia file, and the gallery….

How do I empty the trash on Android?

Android has no single trash — Google Photos, Files by Google, Samsung's My Files and Google Drive each keep their own, and each is emptied separately.

Which SD card can be used as internal storage?

The question has two halves — which cards are fast enough, and whether you should adopt one at all.

How do I move files to an SD card?

The steps in Files by Google and Samsung's My Files, what moving does that copying does not, what cannot go onto a card, and why the card fills up….

How do I free up system space on Android?

Google's own storage help lists what you can remove, and the system itself is not on the list.

How do I transfer files out of Samsung Secure Folder?

Samsung's Move out of Secure Folder steps, where a moved file lands, why apps and files behave differently, and why backup no longer covers Secure….

What does "device memory full" mean?

On a phone, memory can mean RAM or storage.

Why does my Files app keep crashing?

Samsung My Files or Files by Google crashing?.

How do I back up Samsung My Files?

My Files is a viewer; you back up the files it shows.

What is network storage in Samsung My Files?

Network storage in My Files connects a Galaxy phone to a server such as a PC.

Does Android have a file manager?

Yes, but which one depends on the phone: Android's file picker, the maker's app such as My Files, or Files by Google for Android 8.0 and up.

What is internal storage on Android?

To you it is the phone's built-in storage; to Android's developers it is each app's private area.

Is the Files by Google app safe?

What Google declares in the app's Play data safety section, the permissions it asks for, what Safe folder does and does not protect, and where Google….

Where do I find app data on Android?

Each app keeps its data in private folders Android hides from you and other apps.

How does Samsung My Files work?

My Files is Samsung's file manager: categories on top, the folder tree underneath, and Copy, Move and a 30-day Trash.

Can I delete WhatsApp's Sent images folder?

WhatsApp's help never mentions a Sent folder.

Can I change where Android saves screenshots?

Neither Google nor Samsung documents a setting for it; Samsung's save-location option is for screen recordings.

Does a SIM card hold storage?

Not for photos or files.

How do I sort albums in Google Photos?

Collections, then Albums, then Sort by: three orders for the album list.

How do I update Samsung My Files?

My Files is listed on both the Galaxy Store and Google Play, and Samsung says to check both.

Why is my phone's internal storage not showing?

On a computer it is usually a locked phone or a cable in charging mode; on the phone, an SD card set up as internal storage.

What is the best app to automatically sort files into folders on Android?

Seven ways to sort Android files into folders automatically, from File Sorter and FilePipe to File Navigator and ours, compared on where files end up.

How do I open the recycle bin on Android?

The bin belongs to the app you deleted with: My Files or Gallery on a Galaxy, Files by Google, or Google Photos.

Can you buy more storage for an Android phone?

Not for the phone's own memory.

What is Storage manager on Android?

Google's help now calls it Smart Storage: it removes phone copies of photos already backed up to Google Photos.

Does Android have cloud storage?

Yes, through your Google Account: backup for settings and messages, Google Photos for pictures, Drive for files — and what Samsung Cloud still covers.

Why isn't my Files app working?

If it opens but shows nothing, or not the file you expected: check its storage permission, hidden files, the SD card, and whether the file sits in….

How do I change the download location on Android?

Google's Chrome help for Android documents no download-location setting.

Where are downloaded videos stored on Android?

A video saved from a browser goes to Download.

What is the Android folder structure?

A map of the folders at the top of Android storage — the camera folder, Pictures, Download, Documents, Music — and what Android says each is for.

What is the best way to store photos on Android?

Google Photos backup, Samsung Gallery via Google Drive, or an SD card — the trade-offs each vendor documents: storage limits, quality, and what a….

What are the common file types and their extensions?

Images, video, audio, documents, archives and app installers — the extensions a phone actually holds, checked against Android's and Microsoft's own….

How does the gallery work on Android?

A gallery app shows Android's index of media files, not a folder of its own.

How do I organize the Samsung Gallery?

Albums, groups, hidden and private albums, stories and duplicate clean-up in Samsung Gallery, from Samsung's own guides — plus what they leave out.

How do I recover a deleted photo folder on Android?

Deleted an album or a folder of pictures?.

Is it safe to delete installation files on Android?

What Samsung My Files' Installation files category holds, why deleting an APK is not uninstalling, and the one kind of installer worth keeping.

How do I show hidden files in a file manager on Android?

The Show hidden files switch in Files by Google and Show hidden system files in Samsung My Files, what "hidden" means, and the .nomedia file you may….

How to allow apps to work in the background

The switches that let an Android app keep working in the background on Pixel and Galaxy phones, from Google's and Samsung's help — and what each costs.

How do I empty a folder without deleting it?

Open the folder, then select what is inside it — the steps in Samsung My Files and Files by Google, where a select-all exists, and what hides from….

Can Files by Google automatically sort files into folders?

Google's own help for Files by Google describes cleaning, categories, Safe folder and manual moves — not rules that file new downloads into folders.

Where do I find downloads on my tablet?

On an Android tablet: Chrome's Downloads list, Files by Google's Recents, Samsung My Files' Downloads — plus the profile and no-Trash catches tablets….

Why is my gallery empty?

When every album vanishes at once: the gallery's photo permission, Android 14 selected-photos access, an unread SD card, hidden albums, cloud-only….

Where have my downloaded photos gone?

Where Chrome, Gmail, WhatsApp and Google Photos put a picture you saved on Android, per each one's help — and why the gallery may file it out of sight.

Why are my screenshots disappearing?

Trash, a deletion on another device, space-saving clean-ups, archive and Safe folder — the documented reasons screenshots vanish on Android, in order.

How do I organize a file system?

What Harvard and MIT records guides say about folder levels and file names, and how to apply them on Android in Files by Google or Samsung My Files.

How do I sort photos by date taken?

Date taken is written inside a photo; file dates change on copy or download.

Can you open zip files on Android?

Files by Google extracts .zip files (only .zip, Google says).

Where does Telegram save files on Android?

Telegram's FAQ names no folder.

Where is the file manager on a Redmi phone?

Xiaomi's File Manager comes pre-installed with a folder icon.

How do I find the largest files on Android?

Files by Google's large-files card and Size sort, Samsung's Analyse storage, Settings › Storage — and the big downloads that never show up as files.

How do I allow multiple downloads in Chrome on Android?

Chrome on Android calls it Automatic downloads, a site permission you set per site or for all.

Where is the Music folder on Android?

Android's Music folder sits at the top of internal storage, but your music library is wider: other audio folders, file-manager views, and in-app….

What is the Other category in Android storage?

Samsung says Other holds app data — system files, cache and temporary files — that cannot be deleted directly.

How do I copy a file path on Android?

Google's, Samsung's and Xiaomi's file-manager help documents no copy-path button.

How do I organize my Downloads folder on Android?

Sort the view, make a few folders inside Download and move files in, then keep it tidy weekly — the Files by Google and Samsung My Files steps, and….

Where are my files on a Samsung phone?

Almost everything is in the My Files app, in the Samsung folder by default: categories, recent files, search, Internal storage.

Where are photos stored on Android?

Camera shots, downloads, screenshots and chat pictures land in different folders on Android.

How do I clean up the files on my phone?

A files-first clean-up for an Android phone: decide, file, then delete — Downloads, screenshots, chat media, duplicates, large files, and the Trash….

Is Samsung My Files safe, and is it free?

Samsung's own file manager, preinstalled and priced at zero.

How do I show hidden files in the vivo file manager?

vivo documents two switches — one in its own File Manager, one in Files by Google — depending on your Funtouch OS version.

Can you drag and drop files on Android?

Yes, in Files by Google and between apps in split screen — but a drag inside the app moves a file, while a drag into another app copies it.

Can I change the default file manager on Android?

Google's and Samsung's default-app guides name browsers and messaging apps, not file managers.

Why is my phone storage still full after deleting everything?

Deleted files usually wait in a bin, on a memory card or inside an app before the space comes back.

What is the WhatsApp Private folder on Android?

WhatsApp's help never mentions a folder called Private.

How do I put pictures in a folder on Android?

An album in Google Photos, an album in Samsung Gallery and a folder in a file manager are three different things.

How do I transfer files from Android to a Mac?

Google's cable steps cover Windows and Chromebook, not Mac.

How do I organize screenshots on Android?

Screenshots already share one folder.

Can you sort YouTube downloads?

Not in a file manager: YouTube keeps its downloads encrypted inside the app.

How do I save downloads to my gallery on Android?

A downloaded picture is usually reachable from the gallery already, just not in the main grid.

Why does WhatsApp say "downloading document", and where does the file go?

WhatsApp's help does not explain that notification.

Why do WhatsApp downloads fail?

WhatsApp names a weak connection first, then storage permission, SD-card space and a read-only card.

Can I clear Google Play Store and Play services storage?

Yes, from Settings › Apps.

How do I organize PDF files on Android?

PDFs land wherever the app that fetched them chose.

What is Doze mode on Android?

Doze is Android's idle state for an unplugged, still phone with the screen off: it holds back network, jobs and alarms, then lets them run in short….

How do I hide files on Android?

Files by Google's Safe folder and Samsung's Secure Folder lock files behind a PIN.

How do I create a shortcut to a file on Android?

Samsung's My Files can pin a folder to the Home screen; Files by Google pins only Clean and Downloads.

How do I copy (duplicate) a file on Android?

In Files by Google, select the file, tap More › Copy to, pick a folder and tap Copy here.

How do I transfer files from a USB drive to my Android phone?

Plug the drive into the phone, with an OTG adapter if the plug does not fit, open it in Files by Google or My Files, and use Copy to into phone….

How do I organize music files on Android?

Folders and song tags are two separate libraries on Android.

Can I lock a folder on Android?

Not where it sits.

How do I clear Recent files on Android?

Recent in Files by Google and Samsung My Files is a list the app builds, not a folder.

How do I share files between Android phones with Quick Share?

Tap Share, then Quick Share, pick the phone, accept on the other side.

How do I send files between Android phones over Bluetooth, and where do they land?

Share, pick Bluetooth, pick the phone, accept on the other side.

Where does WhatsApp keep status photos and videos on Android?

Your own statuses can be saved to the gallery or kept in WhatsApp's status archive.

Why does my Downloads folder look empty on Android?

Usually the files are still there: the app you are looking with is not allowed to see them, they moved, or you are in a different Downloads view.

Can I delete the .thumbnails folder on Android?

Android's reference describes thumbnails as preview files tied to an original photo.

How do I free up space on Android without deleting anything?

Move files to an SD card or a computer, or archive apps you rarely use.

How do I change a file extension on Android?

Rename the file and edit the letters after the last dot.

How do I free up WhatsApp storage on Android?

WhatsApp counts two kinds of storage, on the phone and in the backup.

Why don't Telegram photos show up in my Android gallery?

Usually because Telegram never saved them there.

Why does Android put file 10 before file 2 when sorting by name?

A list that compares names one character at a time puts 10 before 2.

Can I recover permanently deleted files on Android?

Not from the phone, by every vendor page we read: recovery ends with the trash.

Where are APK files stored on Android?

An APK you downloaded is an ordinary file, usually in Download.

What is battery optimization on Android?

Three settings share the idea: a per-app battery choice, Adaptive Battery and Battery Saver.

What file type are photos on Android?

Most Android cameras save JPEG; Samsung and others offer HEIF (.heic) to save space.

Why won't my SD card format on Android?

When a phone refuses to format a memory card: the card's mode, its file system, a locked adapter or a failing card, per Google, Samsung and the SD….

What video files can Android play?

Android's own list names the containers (.mp4, .mkv, .webm, .3gp, .ts) and the codecs inside them.

How do I see all my downloads in Chrome on Android?

Chrome's Downloads list is under More › Downloads.

Why does my Android storage keep filling up?

Space that comes back after a clean-up is usually being refilled on a schedule: app caches, chat media that downloads itself, and offline downloads.

Why does my phone say "SD card error" or that the card is corrupted?

A card can look corrupted when it is only in a format or encryption the phone cannot read.

Can I move apps into Samsung Secure Folder?

Yes, but adding an installed app to Secure Folder makes a second copy; the original stays.

How do I see which apps are running in the background on a Samsung?

Three views on a Galaxy, each answering a different question: Active apps, battery usage and Samsung's sleeping-app lists.

What are background apps on Android, and why do they run?

A background app is one you cannot see that is still doing work, such as syncing, scheduled jobs or music.

How do I turn off background app refresh on Android?

Android has no single switch by that name: you limit an app's background battery use, its background mobile data, or both.

Can I delete the hidden files on my Android phone?

You can delete some of them, once you know what each one is for.

Can WhatsApp save its photos and files to the SD card?

Not through a WhatsApp setting: WhatsApp decides where its folder goes.

Why is my SD card read-only on Android?

First find out whether the card is read-only everywhere or only for one app.

Where does the voice recorder save its files on Android?

On a Galaxy, in Internal storage › Recordings › Voice Recorder.

What do the USB options mean when I plug my Android into a computer, and which one moves files?

File transfer moves any file, PTP shows the phone as a camera, tethering shares its internet, MIDI is for music gear.

What audio files can Android play?

MP3, AAC and M4A, WAV, FLAC, Ogg and Opus, AMR and MIDI are on Android's own list.

Can Android read files on an NTFS or exFAT USB drive?

Google and Samsung's USB drive pages name no file systems at all.

What does "unmount SD card" mean on Android?

It tells the phone to stop using the card so it can be taken out safely.

A question these do not answer? Tell us — the honest version of that answer is the page we will write next.