.tar.gz problem

Dear all,

I am trying to download a sketch, i.e. for example MainSketch27Jan.tar.gz
How do I install and open them in Arduino pls?

Thx

I am trying to download a sketch, i.e. for example MainSketch27Jan.tar.gz
How do I install and open them in Arduino pls?

The gz extension means that it is a compressed format, of a tar file. Which tools you use to uncompress the file, and extract data from the tar file depend on which OS you are using. It seems that you omitted that critical bit of information from your post.

7zip can read most compressed formats