Reset an envelope

1. Select the envelope.
2. Do one of the following:

   • To reset or switch to a preset warp style, choose a new warp style and set options in the Control panel. If desired, click the Envelope Options button  to open the dialog box and set more options.

   • To reset or switch to a mesh grid envelope, choose Object > Envelope Distort > Reset With Mesh. Specify the number of rows and columns for the mesh grid. Select Maintain Envelope Shape to keep the warp shape intact.

 community help (adobe.com)