If you are looking for a program to compress/decompress files effectively, that takes up little memory, for windows, is compatible with most files, and above that is free, you've come to the right place.
Consider also that the program is open source, so the improvements that we are getting are the result of the daily experience of all users.
It is extremely easy to install, you only have to download the most updated version, unlike other programs where you must register with your data, email, and even phone, this does not require any of these actions and you should not register any bank details as it is completely free.
The degree of compatibility is very wide with all imaginable formats, you can see it yourself by accessing the official website of 7-Zip, which I include below and where you can download the program with total guarantee and security, just click here:
You don't have to worry about your Windows version as it supports all of them.
If we compare the power of this program with one of the most popular, but with cost, you will be pleasantly surprised again, since it uses a ratio of 6 / 7% better, which is equivalent to more speed with less volume of bytes occupation, which also makes it more agile and powerful.
You can download both 32-bit and 64-bit versions, with only 1.2 or 1.5 MB of disk space. You also have a very convenient help page, because you can access the forum where you can ask for help, bug-fixing requests, or any other questions you may have.
Don't hesitate, to access the simple, versatile, and free 7-Zip.