8.62.3 Can you answer these questions?

8.62.3.1 Can you show me a website where to build professional tables and then convert them to LaTex?
8.62.3.2 How to use listing, tikz and tikzmark packages together to annotate source code listing?
8.62.3.3 There's xcomb and ycomb in pgfplots, but is there something like an xycomb?
8.62.3.1 Can you show me a website where to build professional tables and then convert them to LaTex?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=657687

I need to reproduce complex tables (like the one attached to this question) by using a professional style as I already done for the following simple table: 
\begin{table}[h] 
\caption{Database of ... 
[tables] [multirow] [online]
 
asked by Giuseppe https://tex.stackexchange.com/landing/r/digest?cta=user&id=223757 Score of 1
8.62.3.2 How to use listing, tikz and tikzmark packages together to annotate source code listing?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=657375

I'd like to annotate code listing something like this: 
Below is what I've attempted so far. I am a little worried about having to use raisebox so that the arrow tip doesn't point to the base of the ... 
[listings] [tikzmark] [annotations]
 
asked by Pyi Soe https://tex.stackexchange.com/landing/r/digest?cta=user&id=270827 Score of 1
answered by Andrew Stacey https://tex.stackexchange.com/landing/r/digest?cta=user&id=86 Score of 0
8.62.3.3 There's xcomb and ycomb in pgfplots, but is there something like an xycomb?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=657559

I'm trying to produce something like the figure below but in 3D so that I can plot discrete point mass functions. The only example I could find in the pgfplots manual is on page 111, but I couldn't ... 
[pgfplots]
 
asked by TonyK https://tex.stackexchange.com/landing/r/digest?cta=user&id=257015 Score of 1
answered by Black Mild https://tex.stackexchange.com/landing/r/digest?cta=user&id=140722 Score of 0