How to Connect Tomba to Excel (4 Methods Compared)

The Problem With Getting Workbook Data In and Out of Tomba

You have an Excel workbook full of data — target company domains, inbound lead emails, trade-show contacts, or prospecting lists scraped from a sales tool. Tomba is where the email intelligence lives. But moving data back and forth between the two means a lot of time in menus that weren't designed to talk to each other.

Tomba is good at finding, verifying, and organizing professional email addresses at scale. But the gap between your workbook and Tomba's database is filled entirely with manual steps. The usual flow is: export a CSV from one side, reformat the columns, import into the other, check for errors, fix the mismatches, and repeat when the data changes.

Below are the four common ways teams bridge that gap. Only the last one scales.

Method 1: Manual Copy-Paste

Export a CSV from Excel, open it, copy a column of domains, paste them one at a time into Tomba's search interface, copy the results back, open the workbook again, find the right rows, paste in the emails.

For a handful of lookups, the friction is tolerable.

For 300 domains, you're doing the same six-step loop three hundred times. Each iteration has its own chances to misalign — wrong row, wrong column, one extra blank that shifts everything below it. By the time you've worked through half the list, the effort of QA'ing your own paste job starts to approach the effort of the original lookup.

And unlike a formula that recalculates, this output is frozen. When a domain's email situation changes next month, the only way to refresh is to do it all again.

Method 2: Power Automate

Power Automate has Tomba connector options. You can trigger a flow on a worksheet row update, call the Tomba API, and write the result back to specified columns automatically.

Before describing what setup involves: do you know what an HTTP action is? A dynamic content binding? An array index expression in a condition block? If those feel unfamiliar, this is not the path forward. Jump to Method 3 or 4 and save yourself a frustrating detour.

For those still here: the flow works. You configure the Excel trigger, authenticate to Tomba, map the domain field to the correct endpoint, and bind the response properties to your target columns.

The limitation is structural.

A row-by-row trigger means one flow run per domain. Enriching 200 rows means 200 separate calls. When row 83 fails because the domain returned no results, Power Automate's default behavior is to continue — which means you may have gaps with no visible indication of where they are.

You probably just need a clean column of verified emails. You probably have no idea how to write a dynamic content expression in Power Automate — there's no shame in that. So you end up handing it off to whoever on your team handles automations, and now you're waiting.

Once you need to filter results, deduplicate, or join against a second worksheet, you've exceeded what a row-level trigger flow is built to do.

Method 3: The Previous Generation — Connector Add-Ons

Until recently, the closest option for repeatable workbook-to-Tomba workflows was a category of add-ons that let you configure column mappings, save templates, and run batch lookups on demand. You selected your range, tagged your fields, saved the config, hit run.

That was a real step up from CSV exports. Configs were reusable, output was consistent, and you didn't rebuild the process from scratch each time.

But you were still responsible for the field mapping, the column layout, the logic for handling multiple returned addresses. The tool moved the data — but the decisions were still yours to make. And whenever the worksheet structure changed — a new column, a renamed header — your saved config broke until someone repaired it.

This was the previous generation. It worked, but it demanded a lot of the operator.

The Easy Way: Using SheetXAI in Excel

There is a different way entirely. SheetXAI is an AI agent that lives inside your Excel workbook. It reads the workbook, understands what you're looking at, and through its built-in Tomba integration it can look up email addresses, validate domains, create leads, and pull data back from Tomba — for you. No template configuration, no automation glue. You just ask.

Example 1: Enrich a domain list with verified emails

For each row in my Excel sheet where column A has a company domain, find the top 3 professional email addresses and put them in columns B, C, and D. Leave blank any row where column A is empty.

SheetXAI calls Tomba for each domain, parses the response, and writes the addresses into the correct columns — row by row, at scale.

Example 2: Create leads from a trade-show contact list

Take all 150 contacts in my Excel table (Name, Email, Company) and add them as new leads in Tomba, writing the Tomba lead ID back into the LeadID column.

The pattern: instead of exporting contacts and reimporting them manually, you ask for the whole operation in one prompt. SheetXAI handles the row iteration, the API calls, and the writeback.

Try It

Get the 7-day free trial of SheetXAI and open any Excel workbook with company domains or contact data, then ask it to do one of the tasks above. The Tomba integration is included in every SheetXAI plan.