How to send large files?

By teamnext Editorial Team

In digital work, sending files is a basic skill. Still, there are a few common traps. Because many small files can be bundled into a single ZIP archive, the question usually boils down to one thing: how to send large amounts of data without creating chaos.

Example: 50 original photos, 5 MB each. That’s 250 MB. This should not be sent as an email attachment. Maximum email size depends on the provider, but 25 MB or less is typical. Splitting files across many separate emails is the worst workaround: confusing, annoying, and unprofessional — and a reliable way to clog inboxes.

Rule of thumb: Email attachments work only if it stays within 1–2 emails. Anything beyond that should be handled via links.

Sending large files – the simple workflow

Step 1: Zip the files

A common first step is creating a ZIP file. No extra tools are required.

  • Windows: Select files → Right click → Send to → Compressed (zipped) folder

  • macOS: Select files → Right click → Compress

Important: ZIP is lossless. No image information is destroyed. Extracting the ZIP recreates the original files.

But: For already compressed formats like JPEG, MP4, MP3, ZIP typically saves very little space. The main benefit is convenience: one file instead of many.

ZIP can significantly reduce size for:

  • documents

  • source code

  • some RAW workflows

  • generally uncompressed data

Step 2: Upload – but where?

Large file delivery usually follows this pattern: upload → generate link → send link.

Three common categories:

  1. Cloud storage
    Examples: Dropbox, Google Drive, iCloud, OneDrive
    Best for: storage + repeated sharing + collaboration

  2. File transfer services
    Examples: WeTransfer, SwissTransfer, WeSendit
    Best for: one-off sending, no long-term storage needed

  3. FTP / web hosting
    Examples: Ionos, Strato + FTP tools (e.g., FileZilla)
    Best for: professionals, regular transfers, structured delivery
    Downside: highest setup effort

Cloud storage – typical flow
Upload the file (sync folder or browser) → Share → copy link.

WeTransfer – typical flow
Drag & drop files (free plans often allow up to 2 GB) → generate link or email delivery → downloads usually expire (e.g., 7 days on free plans).
Note: With transfer services, zipping is often optional because the process already bundles files logically.

FTP – typical flow
Upload via a client like FileZilla → share server address + credentials.
This is only “clean” when recipients use it regularly and the setup is already established.

Step 3: Send the link

The final step is clean handover:

  • paste the link into an email or message

  • label what’s inside, total size, and availability window

  • optionally add password + expiration (if supported)

Modern email systems sometimes do this automatically. Gmail, for example, can insert Drive files as virtual attachments — technically, that’s a permission-controlled link.

FTP is different: a link alone is not enough. It requires address + username + password. That’s why FTP is a power-user tool.

Enterprise context: what changes

In companies, “just send a link” is often not enough.

Typical additional requirements:

  • security and privacy (password, expiration, access control, EU hosting)

  • traceability (who downloaded what and when)

  • governance (roles, approvals, controlled distribution)

  • scale (many recipient groups, recurring workflows)

Many large providers operate globally. That isn’t automatically a problem, but it often triggers discussions about data residency, contracts, auditability, and flexibility. For organizations with strict requirements, GDPR-compliant regional providers or on-premises options are frequently the cleaner choice.