How to name files so you can actually find them

Short answer

To name files so you can find them later, use one consistent pattern for every file: a division, the date written as YYYYMMDD, a short description, and a type code, joined by underscores, like Acme-Corp_20260612_Roof-Damage-Photos_PHOTO.pdf. The name keeps useful context when the file moves. When sorted by name, matching Division prefixes group together and dates order the files within those groups. Search results still depend on indexing, search scope and access.

How to name files so you can actually find them: the Division_YYYYMMDD_Description_TYPE pattern beside a searchable name builder

Why put context in the filename as well as the folder?

Think about the last time you went hunting for a document. You probably remembered roughly what it was and roughly when it landed, but not which of fifteen nested folders someone filed it under. That's the trap with folders: the meaning lives in the path, and the path is invisible the moment a file gets emailed, downloaded, or dragged somewhere else.

A good filename carries its own context. It tells you what the file is before you open it, it stays readable after the file leaves its folder, and it shows up when you search by client, date, or keyword. A descriptive name complements a useful folder structure; it does not replace access controls or a search index.

What is the file naming pattern?

A file naming convention is a fixed pattern that every filename follows, so names stay predictable and sortable. DNM's default General standard is built around one readable pattern, joined by underscores:

Division_YYYYMMDD_Description_TYPE.ext

Division is the thing the file belongs to: a client, a case, a property, a project, or a claim, usually with its reference number, like STRATA1234. It leads the name because it's the first thing you sort and group by.
YYYYMMDD is the date, ordered from largest unit to smallest. With name sorting and matching preceding fields, 20260424 falls after 20260101.
Description is a few plain words joined by hyphens, so a person can tell two files apart at a glance. Keep it short, in the spirit of the 12-character rule for file names that scale.
TYPE is a short code for what the file is: INV for invoice, RPT for report, PHOTO for a photo, LGL for legal.
.ext is the original extension, always preserved.

In the General standard the description sits before the type, so the part a human reads comes first and the short code lands next to the extension. Several built-in standards place the type before the description, grouping types after the preceding fields match. Choose one field order for the workflow and document what each value means.

What does a named file look like?

Say a contractor sends Acme Corp a set of roof-damage photos. The raw file might arrive as scan0012.pdf, which tells you nothing a week later. Run it through the pattern and it becomes Acme-Corp_20260612_Roof-Damage-Photos_PHOTO.pdf.

The name identifies the client, chosen date and subject without opening the PDF. A JPEG would retain its .jpg extension; renaming does not convert it to a PDF. When sorting by name, files with the same client prefix appear in the order of their filename dates, which may differ from creation or modification dates. See the full DNM Standard for every segment and rule.

What rules keep filenames clean?

Underscores separate the major parts; hyphens hold a multi-word part together, like Roof-Damage-Photos.
Dates stay in the compact YYYYMMDD form used by DNM so it sorts correctly.
Characters that Windows and SharePoint reject, like the colon, question mark, asterisk, slashes, and pipe, get stripped or replaced, but the complete destination path and Microsoft 365 workflow still need checking.
Bare numbers get padded with leading zeros so they still sort in order, while real reference IDs like 2026-0022 are left alone.
The original extension is preserved. DNM renames the file, never the kind of file.

How do you make the pattern stick?

The pattern is the easy part. The hard part is applying it to every file, every time, without it turning into a chore that gets skipped on a busy day. That's the job DNM does: you import files on your Windows PC, review names suggested from your standard and save to your chosen destination. Naming does not upload documents to a naming service. Recovery Vault can undo eligible recent saves subject to settings, storage limits and unchanged files.

Want to shape the pattern for your own team first? Build it in the free generator, then download DNM for Windows to review and save names using it.

Common questions

Does renaming a JPEG turn it into a PDF?

No. DNM preserves the original extension. The PDF example starts with a PDF.

Does a date in the filename sort all files chronologically?

Only when the chosen sort is by name and the fields before the date match. A Division-first name groups by Division before date.