> For the complete documentation index, see [llms.txt](https://docs.contentsync.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.contentsync.com/spreadsheets/microsoft-excel-365.md).

# Microsoft Excel 365

To get started with Microsoft Excel 365 spreadsheets, make sure you either sign up with a Microsoft account or [add a Microsoft authentication](/platform/contentsync.com.md#add-authentication) to your ContentSync account. 

{% hint style="info" %}
You must have at lease one Microsoft authentication enabled on your account to use Microsoft Excel 365 Spreadsheets.
{% endhint %}

## Performance

We notice that sync consistency and delays are often significant on Microsoft Excel 365 versus Google Spreadsheets. Sometimes you will need to wait a minute for Excel to be consistent before or after a sync. You may also need to refresh the Excel webpage to make sure its up to date.