Analyzing BigQuery via Excel and Google Sheets

Both MS Excel and Google Sheets offer ways to connect directly to BQ data, to run queries, to pull data back to Excel/Sheets and allow further analysis via options such as pivot tables, charts and drilling up/down.
MS Excel
The link provided below details instructions for setting up an external datasource to BQ from Excel. Basically, we would need to provide Excel with the project ID, the query to run and the authorization key for it to run the query and pull the data. https://cloud.google.com/bigquery/docs/bigquery-connector-for-excelProviding project and query information

Analyzing retrieved data with pivot tables

Analyzing the pivot data further

Google Sheets
BigQuery allows ad-hoc queries to run via BigQuery UI and allows saving results data as Google Sheets directly in the user's Google drive. Via Google Sheets, the users can then pivot and perform analysis just like in Excel.Exporting data to Sheets

Analyzing via Sheets (sample view):

Sheets add-ons:
Add-ons for Sheets, provided by third parties, allow for easy integration with BQ, as well as running queries directly, extracting results and analyzing and visualizing data. A few popular Google Sheets add-ons for BigQuery:- OWOX BI (100% Google Cloud Platform)
- SuperMetrics
- Insight Metrix IM Funnel