> For the complete documentation index, see [llms.txt](https://docs.graphite-note.com/graphite-note-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.graphite-note.com/graphite-note-documentation/~/changes/E2AMshWWxt1bMPRlFt2a/datasets/data-sources-in-graphite-note/csv/re-upload-a-csv.md).
# Re-upload a CSV
If you have you collected more data related to your uploaded CSV or there has been a change in the [data you have uploaded](/graphite-note-documentation/~/changes/E2AMshWWxt1bMPRlFt2a/datasets/data-sources-in-graphite-note/csv/upload-a-csv.md) you can use the re-uploading option.
To understand, if you have a new file with new data, you can re-upload to append it to the previous dataset. Just keep in mind that the file you select must have the same column structure as the previously uploaded file.
To re-upload a CSV file :
1. Go to *Datasets list*
2. Select the dataset you want to re-upload
3. Select *Re-upload*
4. Depending on your needs, you can select *Append data*
5. Select or drop your CSV file
6. Select *Update*
For example, it can be useful for monthly data. If every month you are getting new data in a CSV file and you need to merge the data for all the months into one CSV file. Instead of repeating the copy and paste commands, you can use the re-upload option on every month, which is easier and faster.
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