2. Set music spread playback: after selecting a music object, two audio tool tabs will appear. Click Play. In the audio option, there is cross slide show. Check the box in front, music can be played across pages. Pay attention to the start time of music playing. If you need automatic playback, you can choose automatic. If you need to click with the mouse, you can also select loop playback.

A complete PPT file generally includes: title, animation, PPT cover, preface, table of contents, transition page, chart page, picture page, text page, back cover, ending animation, etc.

The materials used are: words, pictures, charts, animations, sounds, movies, etc. The world's leading PPT design companies are: themegallery, poweredtemplates, presentationload, etc. The application level of PPT in China has been gradually improved, and its application fields have become wider and wider.

PPT is becoming an important part of people's work and life, and it plays an important role in work report, enterprise publicity, product promotion, wedding celebration, project bidding, management consultation, education and training.

References:

Baidu encyclopedia: ppt