At the left side of the admin panel, go to settings and click on MM Forms.

To export records,

1- click on the export icon in the export column

2- wait for the export link, click on the download link that will appear next to the icon.

3- the export will be in CSV, that you can easily manage in Excel

To disable form,

1- go to pages, select the registration page

2- remove the text    [form 2 "Registration"]

3- save, the form will be removed, you can place alternate text there

4- to publish the form again just add the text          [form 2 "Registration"]       again.

To update form content,

1- go to settings -> MM Forms

2- click on the edit icon (pencil)

3- you will see a box with a bunch of HTML code, be careful

4- edit only normal text, don't delete  symbols like  < > [ ] /

5- click on save