How to convert a time-series csv from long format to wide format
- Step 1Export the long-format time-series CSV — Download from your analytics pipeline, data warehouse, or BI export.
- Step 2Verify the long format — Confirm each row has a date, a metric name, and a value before transposing.
- Step 3Run the transpose — Drop the file into CSV Transposer and click transpose.
- Step 4Load the wide-format output — Download and import into Looker Studio, Excel, or Tableau.
Frequently asked questions
Is this the same as a pivot table operation?+
Transposing flips rows and columns directly. A pivot table aggregates and groups values. For simple format conversion, transpose is usually what you need.
What if my CSV has more than two key columns?+
The transpose is a raw row-column flip. Complex pivots with aggregation are better handled in pandas or a BI tool.
Does wide format affect how charts read the data?+
Yes — in wide format, each column can be a separate chart series, which is how most spreadsheet chart tools work.
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