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CS17 Learning Centre · Digital Skills

Email Attachments and File Sharing

Attach files, check sizes and share documents securely.

Understanding the topic

Attachments travel with a message, while shared links point to files stored online. Choose the method that suits file size, sensitivity and the recipient’s access.

Use the examples below as a starting point, then adapt the method to your own situation.

Step-by-step approach

Confirm the recipient; check the file name and version; attach or share; verify permissions; review the message before sending.

  1. Identify the purpose and information you need.
  2. Follow the recommended method carefully.
  3. Check your result against the original purpose.
  4. Revise anything unclear or incomplete.

Examples at a glance

SituationExampleExplanation
Wrong fileBudget-final-v2.xlsx and Budget-final-v3.xlsx exist.Open and confirm the correct version before attaching.
Large fileA 90 MB video exceeds an email service’s limit.Use a permitted file-sharing link instead.
Private linkA document contains personal information.Limit access to named recipients rather than “anyone with link”.
Follow-upRecipient cannot open a shared file.Check whether their account has permission and the link is correct.

Four worked examples

Example 1: Wrong file

Starting point: Budget-final-v2.xlsx and Budget-final-v3.xlsx exist.

Why this works: Open and confirm the correct version before attaching.

Example 2: Large file

Starting point: A 90 MB video exceeds an email service’s limit.

Why this works: Use a permitted file-sharing link instead.

Example 3: Private link

Starting point: A document contains personal information.

Why this works: Limit access to named recipients rather than “anyone with link”.

Example 4: Follow-up

Starting point: Recipient cannot open a shared file.

Why this works: Check whether their account has permission and the link is correct.

Common mistakes

  • Sending a confidential file to the wrong address.
  • Assuming links automatically expire.
  • Forgetting to remove edit access when view-only is enough.

Practice questions

Think about your answer, then expand each question to compare.

Question 1: What is the main purpose of email attachments and file sharing?

Attachments travel with a message, while shared links point to files stored online. Choose the method that suits file size, sensitivity and the recipient’s access.

Question 2: What is a useful first step?

Confirm the recipient; check the file name and version; attach or share; verify permissions; review the message before sending.

Question 3: How would you handle this situation: Wrong file?

Open and confirm the correct version before attaching.

Question 4: What does this example teach: A document contains personal information.?

Limit access to named recipients rather than “anyone with link”.

Question 5: Name one mistake to avoid.

Sending a confidential file to the wrong address.

Review checklist

  • Can you explain the main idea in your own words?
  • Can you apply the method to a new example?
  • Have you checked the relevant facts, figures and instructions?
  • Can you identify a common mistake and avoid it?