

If you run a business, agency, or sales team, your data rarely lives in one tidy file. A lead list here, a campaign report there, invoices in another tab. The VSTACK function turns that chaos into one clean column of truth by vertically appending ranges from different sheets or workbooks into a single, live view.Instead of copying and pasting every week, you write one VSTACK formula to stack your arrays. As data grows, VSTACK simply expands. When you delegate that pattern to an AI computer agent, the effect multiplies: the agent can open Google Sheets and Excel files, structure the ranges, apply VSTACK or equivalent stacking logic, fix errors, and publish fresh summaries. You keep the story in the data; the agent does the stacking on repeat.
If your workday lives inside spreadsheets, VSTACK is your quiet superpower. It takes scattered tables and stacks them into one living sheet. You can do this by hand, or you can hand it off to an AI computer agent that never gets bored.
Below are the top ways to use VSTACK in Excel and Google Sheets, plus how to scale the whole workflow with an AI agent.
Goal: Combine multiple ranges into a single table.
Sheet1!A2:C50Sheet2!A2:C40Sheet3!A2:C60A2.=VSTACK(Sheet1!A2:C50, Sheet2!A2:C40, Sheet3!A2:C60)#N/A. Wrap with IFERROR:=IFERROR(VSTACK(Sheet1!A2:C50, Sheet2!A2:C40, Sheet3!A2:C60), "")Pros (manual Excel):
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Google Sheets has its own VSTACK that behaves similarly.
Leads_Jan!A2:FLeads_Feb!A2:FLeads_Mar!A2:FAll_Leads and click cell A2.=VSTACK(Leads_Jan!A2:F, Leads_Feb!A2:F, Leads_Mar!A2:F)=UNIQUE(VSTACK(Leads_Jan!A2:F, Leads_Feb!A2:F, Leads_Mar!A2:F))Pros (manual Sheets):
Cons:
A small upgrade is to design templates that expect VSTACK.
This reduces formula editing but still relies on you to manage files and the overall workflow.
Now imagine someone else does all of that: opening files, checking column layouts, inserting VSTACK formulas, fixing #N/A issues, and exporting summaries.
That someone can be a Simular AI computer agent.
Because Simular Pro controls the entire desktop environment and browser, an agent can:
You describe the workflow once (for example, "every Monday, stack weekly sales tabs across all client files, update the All_Clients sheet, and export a CSV"), and the agent executes it step by step, transparently.
Pros (AI agent):
Cons:
You stay focused on which questions your data should answer; your AI computer agent becomes the invisible operator that keeps VSTACK humming in the background.
In Excel, place your source tables in separate sheets with matching columns. Go to a summary sheet, select the top output cell, and enter a formula like =VSTACK(Sheet1!A2:C50, Sheet2!A2:C40). Excel spills the combined rows into a single table. In Google Sheets, use the same pattern, adjusting sheet names and ranges.
VSTACK pads smaller ranges to match the widest range, which can produce #N/A errors in extra cells. Wrap your formula with IFERROR to hide or replace them, for example: =IFERROR(VSTACK(A2:C50, E2:F40), ""). You can also align columns first so each source range uses the same structure before stacking.
Manually, you must open each workbook, reference its ranges, and point VSTACK to them, which quickly becomes tedious. A better pattern is to standardize the layout and centralize data first, or let an AI agent like Simular open each Excel or Google Sheets file, copy ranges into a staging sheet, and then apply VSTACK on that staging area.
First, use VSTACK to append all your ranges, then wrap it with tools that shape the result. In Excel: =UNIQUE(FILTER(VSTACK(A2:C50, E2:G40), VSTACK(A2:A50, E2:E40)<>"")) to remove blanks and duplicates. In Google Sheets, use the same idea: VSTACK inside FILTER and UNIQUE to get a clean, compact list.
For a lightweight approach, build a summary sheet with VSTACK formulas that reference consistent ranges and refresh whenever data changes. For larger, recurring workloads, encode the steps into a Simular AI agent so it can open Google Sheets and Excel, apply or update VSTACK formulas, export results, and ship reports on a schedule without manual clicks.