> For the complete documentation index, see [llms.txt](https://guide.digicust.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.digicust.com/guides/upload-master-data.md).
# Upload Master Data
To automate customs case processing with recurring shippers, uploading existing material and stakeholder master data, you can simply upload XLSX or CSV files.
Upload master data from XLSX-files
1. Go to Master Data and choose either tab "Material", "Stakeholder" or "Tariff Number" depending on what kind of master data you want to operate on.
2. Click "Import from File"
3. Choose either "XLSX" (recommended) or "CSV".\
4. Now, click on "Download Sample XLSX" or "Download Sample CSV".\
5. Open the XLSX or CSV file using a spreadsheet editor like Microsoft Excel. Row 1 contains the titles, keep all titles that you want to populate. Row 2 shows sample data entries. Replace these samples with your own data.
6. Now, upload the edited XSLX or CSV file and hit "Import".\
7. Our AI is busy making sense of your master data. This can take up to 10 seconds per entry. You will receive an email notification once the machine is done. Master data is then automatically being used for filling out customs declarations.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://guide.digicust.com/guides/upload-master-data.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.