If you're looking for something to replace Sheeter, FormulaGenerator is another good option. This AI-based tool lets you create Excel formulas, VBA automations and SQL queries with fine-tuned GPT models. It can create formulas from text prompts, fix errors, explain formulas and generate VBA code. It's available as a web app and as a Google Sheets add-on, and you get 10 requests a month on the free tier.
Another good option is Formula Bot, an all-purpose data analysis tool that converts text prompts into different formats like Excel formulas, SQL queries, VBA scripts and Google Apps Scripts. It's got tools like an Excel Formula Generator, SQL Query Generator, Text to Excel Converter and a Data Analyzer that lets you ask natural language questions. The service can handle a range of data sources and has different pricing levels, so it's useful and affordable.
You could also try ManyExcel, which can help you work more productively in Excel and Google Sheets by generating formulas, regex patterns and scripts. It's got an AI Formula Generator, AI Regex Generator, AI Script Generator and a Data Analysis Tool. The tool has a free plan with limited use and a Pro plan for $5/month.
Last, AI Excel Bot is a simple interface for generating complex Excel formulas based on English prompts, available as a Chrome extension. It can handle both Excel and Google Sheets and can explain the formulas and VBA code it generates. With different pricing levels, including a free plan, it's a useful tool for automating spreadsheet work.