Import and clean up multiple CSV files into Google Sheets

Reads a folder of CSV files, removes duplicates, and updates a Google Sheets subscriber list automatically.

How the work actually flows

It repeats. Repeats moving to next csv file.

Pattern: Structured Loop (21)

flowchart TD trig[\"CSV files found in folder"\]:::trigdata s0[("Read next CSV file")]:::store s1["Check for duplicate entries"]:::task s2["Filter and sort subscribers"]:::task s3[("Update Google Sheets")]:::store trig --> s0 s0 --> s1 s1 --> s2 s2 --> s3 lp{"all files in folder processed"}:::gate s3 --> lp lp -. "moving to next CSV file" .-> s0 lp -->|"finished"| out out[/"subscriber list updated without duplicates"/]:::out pay{{"clean data without manual copying"}}:::pay out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff
Starts itA stepA record or sheetRepeat or finishResultPayoff
Build size
Starter

A small build with a couple of connected tools.

Business functions
Spreadsheet & Database Ops
Connects
Google Sheets

The problem it solves

Every time you get a new batch of CSV exports, you have to open each one, check for duplicates, and manually copy the right rows into your master spreadsheet. It's tedious, and it's easy to miss an update or paste over good data.

Who it fits

Operations or marketing staff who regularly import subscriber or customer data from CSV exports.

How it works

  1. New CSV files are read from a folder, one at a time
  2. Each file's data is checked for duplicate entries
  3. Only current subscribers are kept and sorted by signup date
  4. The results are added to Google Sheets, updating any existing entries
What you get

Subscriber lists that stay duplicate-free

Your subscriber list stays current automatically, with new signups added and duplicate entries removed the moment fresh files land in your folder.

What you get

An updated, duplicate-free subscriber list in Google Sheets.

What you need

A Google account with Sheets access and a folder of CSV files to read from.

We can build this. But should you?

The hard question is not how to build it. It is whether this is the right thing to build first.

That is what a Fractional Chief AI Officer figures out with you, before anyone writes a line of code.

Let's Talk Strategy

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