Messy CSV and Excel files are hard to clean, and one edit can overwrite the original workbook. Always let the assistant work on a copy. These add-ons let it read spreadsheets and, after you sign in, your Google Sheets.
Free picks (tested by us)
Most useful first. Each one was installed on a clean test system; start with the first, try it, then add the next.
Lets your assistant read your Word, PDF, Excel and PowerPoint files.
Test: installs cleanly and works without an account. Not yet used on real work.
EveryoneWatch outIt reads any file address the agent gives it, including files outside the folder you meant. Run it in a limited setup if the agent is not fully trusted.