How to remove unwanted text from file name and title ?

Filename: Ellie Goulding - Love Me Like You Do - (www.SongsLover.pk)
Title: Love Me Like You Do - www.SongsLover.pk

Now I want to remove that " - (www.SongsLover.pk)" from filename and " - www.SongsLover.pk" from title.
Some files contain numbers too. like "08. Ellie Goulding - Love Me Like You Do - (www.SongsLover.pk"

Thank You.

You can use the actions-menue and define 2 subsequent actions in 1 action group:

Action-Type: Guess Values
Source-Format: %title%
%title% - %dummy%

Action Type: Format Value
Field: _FILENAME
Format String: [$num(%track%,2). ]%artist% - %title%

The forst action strips the unwanted string from the title.
The second action rebuilds the filename fom the tags.
The tracknumber is added to the filename if there is any %track%-tag present.

You should always test actions first not on the original files but on copies till you know they work as you wish.