If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

You may need to open SRT Files in Windows 11/10, to use it with a video player so that the subtitles will play along with the movie.

It’s likely that many of you use some form of CAD package, but how many of you have decided you didn’t like the software on offer? [Marcus Wu] did, and instead of griping, he wrote his ...