Play Flash(.swf) files in SharePoint Online

Question

Are there any options/webparts to play flash(.swf) files in SharePoint Online modern and classic pages?

Answer 1

Playing SWF files in SharePoint Online is no longer supported since Flash is in the retiring process in all browsers.

There are no long OOB solutions provided by Microsoft 365 for this requirement, either in modern or classic experience of SharePoint Online.

I would suggest you use other types of video files as an alternative.

References:

Types of files that cannot be added to a list or library.

Microsoft Stream formats and codecs.