How to find files you have not opened in a long time on a Mac

Updated 2026-10-18

Old files are rarely the biggest problem on a Mac, but they make every folder harder to use. Finder can show which files you have not touched in months, so you can archive or delete them in batches instead of one by one.

Sort a folder by last opened

Open a folder such as Documents or Downloads and press Command-2 for list view.
Press Command-J and tick Date Last Opened.
Click the column header so the oldest files come first.

Files with an empty Date Last Opened have never been opened in a way macOS records. In Downloads, that often means things you downloaded and never used.

Search the whole Mac

Choose File, then New Smart Folder.
Click the plus button and choose Last opened date.
Set it to before and choose a date a year or so ago.
Add Kind rules to focus, for example Documents or Movies, and save the search.

Last opened is a guide, not a guarantee. Files opened through some apps or tools may not update it, so check anything important before you remove it.

Decide: keep, archive or delete

Kind of file	Usual choice
Finished projects you may need again	Archive to an external drive or cloud storage
Tax, legal and medical documents	Keep, in one clearly named folder
Installers and disk images	Delete; you can download them again
Duplicate exports and old drafts	Delete after checking the final version
Photos and videos	Keep in your Photos library or an archive drive

Archive safely

Copy the old files to the archive drive. Do not move them yet.
Open a few of the copies from the archive drive to make sure they work.
Only then move the originals on your Mac to the Trash.
Keep the archive drive somewhere safe, ideally with a second copy elsewhere.

Compressing a folder before archiving, by right-clicking it and choosing Compress, keeps hundreds of small files together in one zip.

Keep folders tidy going forward

Give Downloads a monthly clear-out. See how to clean up Downloads.
Keep one Archive folder per year inside Documents, and move finished work there.
Use Stacks on the Desktop: right-click the Desktop and choose Use Stacks, so loose files group themselves by kind.

Spot forgotten files with FileSift

FileSift's Clean Up screen gathers forgotten downloads, old screenshots, installers and apps you have not opened in months, sorted by how much room they take, so you can decide in a few clicks. It shows the count and size before anything moves, and removals go to the Trash first. For everything else, plain-English search with a date, such as screenshots this month or pdfs from last week, shows the filters it used so you can widen or narrow the time frame.

Common questions

Is Date Last Opened accurate?

It is a good guide for files opened from Finder and most apps, but it can be blank or out of date for files read by other tools.

Should I delete files I have not opened in a year?

Not automatically. Archive anything you might need, such as finished projects and records, and delete only what you can get again or no longer need.

FileSift shows your folders as large thumbnails, searches in plain English and clears duplicates. US$19 once, for macOS 14 or later. See what it does.

Related guides

More in How-to guides, or see all guides.