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1. Sending a pdf version to prevent editing
2. Sending an Excel version for non Google Sheets users
3. Sending a .csv version for data export purposes.

The easiest method is to install the Google sheets add-on Email Spreadsheet which automates much of the process.

 Get the Add-on

1. Open any Google sheet
2. Click the menu item Add-ons
3. Click Get Add-on
4. Enter "email google sheet" in the search box and hit enter
5. From the list of add-ons, select Email Spreadsheet. 
6. Click the Free button.
7. On the Request for Permission screen, scroll down and click Allow. 
8. The add-on will be installed into Google Sheets.

 Emailing the Copy of the Google Sheet

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Option 1:

Open your spreadsheet, select File> Email as Attachment.

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You can email your sheet as a PDF, Open Office Spreadsheet, or an Excel file. 

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Option 2:

Download your spreadsheet as a pdf, Excel, or .csv file:

1. Go to File
2. Download
3. Select preferred file type

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Select a file location then select Save.

You can then open your email and attach the file:

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