Thanks for the screenshot and details.
It looks like an issue with OS for installer package and nothing to do with Aspose.Cells APIs. The issue is caused by the maximum path length accepted by operating system (e.g Windows). The maximum path length accepted by some Windows might be 150 characters, it might vary with different OS though. The workaround or solution for this type of issue can be to shorten your installation paths so they don’t ever exceed the characters limit. The issue might also occur if you are trying to substitute a drive because Windows Installer doesn’t support drive substitution.
You may try to install the Dlls version at nuget respo. directly using package manager console in your VS.NET instead:
And, you may seek help online for your issue too.