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WinPython
A free Python-distribution for Windows platform, including prebuilt packages for Scientific Python.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Have a look at WinPython for a Python distribution you can unzip anywhere. (On that page, the "dot" versions only contain a minimalist Python, you can then use PIP and virtual environments to install what you need, if you have network access. The non-dot versions contain a lot of useful libs and IDEs, but they are big.)
Since excel seems to be involved, the Import-Excel package is a nice addition to PowerShell and can be installed with user rights. https://github.com/dfinke/ImportExcel
I stared using it for some Radio Astronomy stuff, and I know where you are coming from. Still once it kind of clicks Windows trys to abstract way to many things and ultimately seems over engineered for no reason. Its also worth noting that i have only needed to know this for the astronomy stuff (in case you wonder) and no were else. On the other hand in Windows during some programming classes my group wanted to use this QT gui editor and it had a hard time finding the cpp compiler and a sqlite binary.