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2 changes: 2 additions & 0 deletions Document-Processing/Excel/Spreadsheet/Blazor/open-and-save.md
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Expand Up @@ -25,6 +25,8 @@ To open an Excel document using the interface, select the **File > Open** option
### Open an Excel file from a local path
To load Excel files programmatically, they can be converted into byte arrays. This approach is particularly effective when files are retrieved from a backend service.

N> In Blazor WebAssembly, File.ReadAllBytes is not supported due to browser security limitations. To work with Excel files, use a [Base64-encoded Excel files](#open-an-excel-file-from-a-base64-string) instead.

{% tabs %}
{% highlight razor tabtitle="Index.razor" %}

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