Go to configuration select "Task Custom Checklist".

Write the name and description of the checklist.

Go to the "Configuration" => Task Checklist Template.

Now we create a Task checklist template, checklist template form view looks like this.

Task checklist template list view looks like this.

You can group by checklist templates.

Now we fill the checklist by selecting the checklist template, When we select checklist template, it adds a record by default.

Task checklist with state New, Completed and Cancelled. Click on Check Icon To Complete Checklist & Cancel Icon to Cancel Checklist.

Checklist completed percentage on list view.

Checklist completed percentage on kanban view.

You can filter checklists by complete/Uncomplete checklist.

Import checklist menu.

Import checklist wizard, select file type & upload file. You can download sample sheet from here.

Click apply after the file is uploaded.

Success message looks like below it's shows successfully imported records.

Following checklists are imported.