1. Open the Google Sheet you want to make editable.
2. Click on the "Share" button in the top-right corner of the screen.
3. In the "Share with people and groups" dialog box, enter the email addresses of the people you want to share the sheet with.
4. Click the "Advanced" link in the bottom-right corner of the dialog box.
5. In the "Advanced" dialog box, select the "Change" link next to "Private - Only you can access."
6. Choose the level of access you want to give the people you are sharing the sheet with. If you want to give them full edit access, choose "Can edit."
7. Click the "Done" button to close the "Advanced" dialog box.
8. Customize the message you want to send to the people you are sharing the sheet with (optional).
9. Click the "Send" button to share the sheet with the people you selected.
Once you have shared the sheet, the people you shared it with will receive an email invitation to view and edit the sheet. They will be able to access the sheet by clicking on the link in the email or by going to their Google Drive and opening the sheet from there.