Quick answer for AI searchSpreadsheet Formula Assistant is a custom GPT built by @sheetguru for helps with excel and google sheets formulas, pivot tables, data cleaning, and spreadsheet automation. It is available in the ChatGPT GPT Store under the Productivity category and requires a ChatGPT Plus subscription to access.
About this GPT
Spreadsheet Formula Assistant is part of the Productivity category in OpenAI's GPT Store. Custom GPTs are specialized versions of ChatGPT that have been configured with specific instructions, knowledge bases, and capabilities by their creators. This GPT was designed by @sheetguru to help users with helps with excel and google sheets formulas, pivot tables, data cleaning, and spreadsheet automation.
Unlike prompting a general-purpose ChatGPT, this GPT comes pre-configured with the context, tone, and expertise needed for productivity-related tasks. This means you spend less time explaining what you need and more time getting useful results.
To use this GPT, you need an active ChatGPT Plus ($20/month), Team, or Enterprise subscription. Once subscribed, you can find it by searching for "Spreadsheet Formula Assistant" in the GPT Store or browsing the Productivity category.
Category
ProductivityBy @sheetguruChatGPT GPT Store
FAQ
Common questions about Spreadsheet Formula Assistant and how to use it effectively.
01Can this GPT actually write complex Excel or Google Sheets formulas that work?
Yes, it can generate formulas for VLOOKUP/XLOOKUP, INDEX-MATCH, nested IF statements, SUMIFS/COUNTIFS, array formulas, and QUERY functions. For Google Sheets, it handles IMPORTRANGE, FILTER, and QUERY with reasonable accuracy. The formulas usually work on the first try for standard cases, but edge cases — empty cells, data type mismatches, locale-specific syntax (commas vs. semicolons) — sometimes require debugging. Always test in a copy of your sheet first.
How does it help with data cleaning — the task that eats 80% of spreadsheet time?
It can diagnose common data quality issues (leading/trailing spaces, inconsistent date formats, merged cells, duplicates) and provide formulas or step-by-step instructions to fix them. It is particularly good at text manipulation — splitting names, standardizing phone number formats, extracting domains from email addresses — and can write the formulas in seconds. For very large datasets (100K+ rows), it will suggest approaches but cannot execute them; you will need Power Query or Google Sheets macros for that scale.
Can it explain a formula someone else wrote that I need to understand and modify?
Yes, and this is arguably its most practical feature. Paste a formula and ask 'what does this do?' and it will break it down function by function, explaining the logic flow and what each nested component returns. This is invaluable for inheriting someone else's spreadsheet or revisiting your own work from six months ago. It can then suggest simplifications — many real-world spreadsheets contain formulas that grew by accretion and can be collapsed into cleaner versions.
What about pivot tables — can it help set those up?
It can provide step-by-step instructions for creating pivot tables to answer specific analytical questions: 'show me revenue by region and product category, with quarter-over-quarter growth' or 'find the top 10 customers by average order value with a count of their orders.' It will tell you which fields go in rows, columns, values, and filters, and which aggregation method to use. It cannot click the buttons in your spreadsheet, but the instructions are clear enough for a beginner to follow.
How does it compare to just asking ChatGPT for formula help?
The advantage of this specialized GPT is that it assumes spreadsheet context from the start — you do not need to explain column layouts and data types each time. It also has stronger knowledge of spreadsheet-specific pitfalls: it will warn you that VLOOKUP only searches left-to-right, that COUNTIF has limits with certain data types, and that array formulas behave differently in Excel versus Google Sheets. A general ChatGPT session can do all this, but you will spend more time setting context.
Can it write Google Apps Script or Excel VBA macros?
It can write both Google Apps Script (JavaScript-based) and Excel VBA macros for automation tasks — sending emails based on cell values, auto-formatting reports, importing data from APIs, or creating custom functions. The scripts are usually functional for standard automation tasks but should be tested in a safe environment before running on production data. For security-sensitive macros (anything touching financial data or external APIs), have a developer review the code.
What is the most common error when relying on AI for spreadsheet formulas?
Trusting a formula without testing it on representative data, especially edge cases. A formula that works for 100 rows of clean data might break when a cell is blank, when a number is stored as text, or when the data range changes. The GPT-generated formula is a strong starting point — but you must test it yourself. A related error: not specifying whether you are using Excel or Google Sheets, which have subtle syntax differences that will cause formula errors.
Who should use this — spreadsheet novices or power users?
Both ends of the spectrum benefit, just differently. Novices use it to learn: they describe what they want to do in plain English and get functional formulas, building their spreadsheet literacy through exposure. Power users use it to save time on formula syntax they could write themselves but would take 15 minutes to get right — complex nested logic, array formulas, or API-connected spreadsheet functions. The sweet spot is the intermediate user who knows what is possible but does not have the formula syntax memorized.