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I am working on a project which require manipulating Excel files. I found a library for this job called Aspose.cells. it is not a free library and we should buy its licence from its site in order to use it in our projects. However, I found that there is a nuget package of this library. So I am a bit confused and wanted to ask these questions:
Since I met nuget I have been thinking that all packages exit on it are free though this one seems to not be. Any description??
I remember one of my friends used Aspose.cells without buying any license what would happen if I did so?
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Typically a NuGet package that does not have an open source license will require you to accept the license agreement before installing it but you should still review the license even if you are not prompted to accept one. Not all NuGet packages are free on nuget.org but a lot of them are free.
Keep in mind that recently NuGet deprecated LicenseUrl and encourage package authors to use license expressions, or embed their licence file in the nupkg.
If all of your packages come from nuget.org, you can have your tool generate urls to nuget.org/packages/{package id}/{package version}/license. But if you use multiple sources, you have no way of knowing which source a package came from, and other feeds might not have an easy way to see the license text for embedded licenses.
Licenses.nuget.org responds to requests containing valid license expressions with an HTTP 200 status code and a web page containing a description of the license expression: if supplied license expression contains a single license identifier a web page is returned that contains that license reference text;
A NuGet package available on nuget.org can have any license.
There is no restriction on whether the NuGet package is free, open source or commercially licensed.
You should review the license that each NuGet package has. Typically a NuGet package that does not have an open source license will require you to accept the license agreement before installing it but you should still review the license even if you are not prompted to accept one.
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