Yes. However I recommend using a tab delimiter instead. This avoids needing to qualify text with quote marks. BTW this is native for the tabular exchange of Microsoft products. So you can build the big string of tabular data with tabs, carriage returns, and line feeds and either save it to a TSV or paste it into Excel where the entire table will be inserted in one action. I've written some one this in these articles.
Process Tabular Data in Variables
CRLF and TAB
Macros If you have any other interests.
If you do a lot of this sort of thing, you might want to go to the next level. I started with web automation with MEP but now due to the huge volume I do, I have .NET programs that do the work. But without having to learn a programming language there are ways to send information to a web form handler directly with a request. This requires no web browser so much simpler, faster, and more reliable. Also timing problems go away. Most web forms send their data in a HTTP POST request but some use GET. Natively MEP can only send a GET request but many form handlers will also accept the data in the parameters of a URI in a GET request. Also one can make a simple script one can use in a External Script command in MEP. If you have any interest in that, feel free to send me a PM or respond here.
I'm also available for hire and am willing to teach or do. I give free consultations, often enough for one to get going on their own.