codecogs wrote:

We've been wanting to hear some feedback from Excel users regarding a
new tool. It's a new way to visualise Microsoft Excel Formulas using
natural mathematics. Also a great way to show hidden logic of your
calculations. It's called Excel Render. We gladly welcome feedbacks in
Codecogs website. Your time will be much appreciated.

If you're going to advertise your product, the very least you can do would be
to actually post the URL. (*I* will not be posting it. If you want to
advertise your product, it's up to you to do it properly.)

It's interesting to note that your site claims this is "Open Source"
software. Great! Where's the source? ...for anything listed on your site?

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The price tags on the things I need are getting bigger by the day.