--- title: "The 1D river results extractor | Tutorials" slug: "the-1d-river-results-extractor" description: "Read an introduction to the 1D river results extractor tool, which is used to extract, collate, check and plot 1D model results. " tags: ["1D river modelling", "viewing results"] updated: 2022-08-04T06:47:29Z published: 2022-08-04T06:47:29Z canonical: "help.floodmodeller.com/the-1d-river-results-extractor" stale: true --- > ## Documentation Index > Fetch the complete documentation index at: https://help.floodmodeller.com/llms.txt > Use this file to discover all available pages before exploring further. # The 1D river results extractor The 1D Model Result extractor is a tool that can extract, collate, check and plot multiple 1D model results files from the same base data. The Result Extractor works directly with .ZZN results files and model .DAT files. This enables the user to extract model results across different return periods, storm durations and different hydraulic model runs. Basic checks can be carried out to ensure that the results are valid. Results are pre-formatted for report tables with additional data drawn from the hydraulic model (e.g. bank elevations, GIS locations). Ordered longitudinal profile data can also be prepared. An audit trail of model runs and associated results files is automatically created when the program is run. Program settings can be saved and loaded to and from Result Extractor Profile files (*.IHP). This section consists of the following: [How to load results files](/v1/docs/loading-results-files) [Results extractor output sheets](/v1/docs/output-sheets) [How to extract time series and long section graphs](/v1/docs/how-to-extract-time-series-and-long-section-graphs) [Results extractor assumptions and limitations](/v1/docs/assumptions-and-limitations)