Best practices for naming files and when to zip before sending

3 min read · Updated 2026-11-13

Short answer

Use clear names with a date, project and version, avoid odd symbols, and upload folders as they are. Zip only when files must stay together as one unit, such as software or app bundles.

A transfer is only as useful as its file names. When a client downloads 40 files called IMG_4471 or final FINAL (2), they waste time working out what is what. A few habits make every send clearer for the person on the other end.

Naming rules that work everywhere

  • Start with the date in year-month-day order, such as 2026-11-13, so files sort correctly.
  • Add the client or project, then what the file is: 2026-11-13_Acme_Brochure_v3.pdf.
  • Use a version number like v3 instead of words like final or new.
  • Stick to letters, numbers, hyphens and underscores. Avoid characters such as ? / \ : * " < > | which some systems reject.
  • Number sequences with leading zeros, such as 001, 002, so 10 does not sort before 2.
Two lists of file names: messy names like IMG_4471 and final FINAL (2) on the left, and clear dated names like 2026-11-13_Acme_Brochure_v3.pdf on the right
Clear names save the recipient time.

Upload a folder or zip it first?

In most cases, just upload the folder. Choose a folder keeps your structure, and the recipient can pick single files or press Download all to get everything as a ZIP with folders intact. You do not need to zip anything yourself.

Zip it yourself first when the files only make sense together, for example:

  • Game builds, apps and software where every file must stay exactly in place.
  • Mac app bundles, design libraries or projects with thousands of tiny files.
  • Archives the recipient must keep as a single file for their records.
Comparison of two options: upload the folder, best for most sends, and zip it yourself first, best for software and archives
Folders for most sends, ZIP for software and bundles.

Name the transfer too

When you use Send by email, give the transfer a title that matches your file names, such as "Acme brochure v3 – print files". It makes the email easy to find later for both of you.

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