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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.
Just today I was told about this extension of PostgreSQL, which, beside other things, can produce MS Excel files (not a joke!) https://github.com/pramsey/pgsql-ogr-fdw Unfortunately, this probably won't help you, because it seems like you are not setting up the database yourself.
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