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The Analysis Tools saves changes automatically in the browser database on each change in a field. This data is closely linked to the browser history, so clearing the browser cache/history will result in removed data.
This functionality is a comfort function and not a persistent and reliable data storage. Please create regularly backups and when you have finished your report create the report export file.
These files are saved .json files which can be loaded back in the Analysis Tools. Based on your settings in the browser you will be asked what to do with the file (save or open) or it will be automatically saved in your downloads folder.
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