Update google-sheets.mdx (#1676)

Update to commonly used terms to surface CSV import/export options

Author: myronkaifung

pages/docs/tracking-methods/integrations/google-sheets.mdx

@@ -4,7 +4,7 @@ import { Callout } from 'nextra/components'
 
 ## Overview
 
-Mixpanel has a native extension for Google Sheets that enables you to import Sheets data to your Mixpanel project, and export your Mixpanel reports/cohorts to your Sheets.
+Mixpanel has a native extension for Google Sheets that enables you to import CSV data to your Mixpanel project, and export your Mixpanel reports/cohorts to your Sheets.
 
 The source code for this extension lives [here](https://github.com/mixpanel/sheets).