You should check out Row Zero (https://rowzero.io). We launched on HN earlier this year. Our CSV handling is the best on the market.
You can import multi GB csvs, we auto infer your format, and land your data in a full-featured spreadsheet that supports filter, sort, ctrl-F, sharing, graphs, the full Excel formula language, native Python, and export to Postgres, Snowflake, and Databricks.
or skip the spreadsheet and go relational with DuckDB. Pretty cool to run directly against a set of CSVs and get performant, results in a language most of us already know and use regularly.
I suppose. But as a software developer I've never created an Excel spreadsheet that wasn't first a CSV. I do most of my own work with local data files in jq for JSON or q for CSV, then go from a CSV to an Excel spreadsheet only when it's time to communicate that data with non-programmers.
Their niche is clearly supposed to be in helping developers and data scientists make that same leap, from the tools and formats native to their data pipelines to feature-rich spreadsheets as an export/reporting/analysis format for consumption by people who otherwise don't code. CS V support (especially for huge files) is unusually important there.
You can import multi GB csvs, we auto infer your format, and land your data in a full-featured spreadsheet that supports filter, sort, ctrl-F, sharing, graphs, the full Excel formula language, native Python, and export to Postgres, Snowflake, and Databricks.