> For the complete documentation index, see [llms.txt](https://docs.b2ihealthcare.com/snow-owl-authoring-platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.b2ihealthcare.com/snow-owl-authoring-platform/local-code-systems/import/custom-spreadsheet.md).
# Custom Spreadsheet
To import a Local Code System from a custom spreadsheet go to:
`File >` `Import > Snow Owl > Local Code System from custom spreadsheet`*.*
The wizard prompts for the Excel file to be imported as well as the Excel sheet to be selected from the imported Excel file. The **`Code system short name`** and **`Code system name`** fields are automatically populated based on the name of the selected sheet. This data can be overwritten to be changed to the required names. Additionally, the following fields need to be specified:
* **`Code system OID`**: Local Code System metadata
* **`Code system URL`**: Local Code System URL
* **`Concept ID columns`**: Excel column containing the IDs of the codes
* **`Concept Term column`**: Excel column containing the terms of the codes
Import Local Code System from spreadsheet
{% hint style="success" %}
After the import, the wizard closes and the imported content will be displayed in the **Local Code Systems View**.
{% endhint %}
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