The "installer" is actually a virus designed to steal your banking info or lock your files.
You might find a cracked version of Xactimate 28, but it won’t have the current price lists, making it useless for real-world estimating.
Using legitimate software like Xactimate offers numerous benefits, including:
If you need the software for professional use, here are the standard pricing options from Verisk/Xactware : Xactimate 101 - Free Beginner Training in Xactimate
Some software solutions offer a basic free version or a low-cost plan for small projects or startups.