Microsoft Excel to MapInfo

Excel to MapInfo Converter Online | GeoDataViewer

Quick answer: Convert XLSX to MapInfo TAB online for free. Open your XLSX data, inspect the map preview, and download MapInfo TAB output locally in your browser — no upload required. XLSX is the modern Microsoft Excel workbook format and is commonly used in geospatial workflows when the audience wants spreadsheet review more than a native geometry container.

Before converting Microsoft Excel to MapInfo

Prepare the input

Use a header row and explicit numeric longitude/latitude columns in decimal degrees. Addresses alone are not coordinates. For mixed DMS or reversed columns, clean the table first.

Know what you download

MapInfo output can contain multiple files packaged as ZIP. Compare the result against the source before sharing.

Download a real Microsoft Excel test file

Expected result: Three synthetic WGS 84 locations near London with name, latitude and longitude columns. Expect three point features, then compare their names and positions.

Limits and troubleshooting

Converting Microsoft Excel to MapInfo can change field types, metadata and presentation. A successful download does not prove every source element survived.
Browser memory varies by device. There is no guaranteed unlimited file size; split large datasets or use a desktop GIS when memory or WASM initialization fails.

If something goes wrong

No points or wrong location: select numeric coordinate columns, check decimal versus DMS and verify longitude/latitude order. Use coordinate cleanup for uncertain input.
Wrong continent or distorted geometry: inspect the source CRS, axis order and a known location. Valid syntax alone does not guarantee valid placement.
Conversion cannot start: reload while online so processing libraries and WebAssembly can load, then retry a smaller known-good sample. File contents are still processed locally.
Incomplete export: compare source/output counts, geometry families and key fields. Inspect warnings and keep the original file.

Prepare your file and check the result

Before opening

Use a header row and one location per row, with numeric longitude and latitude columns in decimal degrees. Street addresses alone are not coordinates.

Before sharing or converting

Check the expected point count and known locations. Remove blank coordinate rows and confirm latitude/longitude have not been swapped.

Download a small XLSX example

Open this example in the tool above. Expect three synthetic points near London: West point, East point and North point. Coordinates span −0.13 to −0.12 longitude and 51.50 to 51.51 latitude. These are demonstration locations, not survey data.

Convert Excel locations to KML →

Source Format Guide

What is Microsoft Excel?

XLSX is the modern Microsoft Excel workbook format and is commonly used in geospatial workflows when the audience wants spreadsheet review more than a native geometry container.

Excel is often where stakeholders review, annotate, and exchange records, so spatial data frequently passes through XLSX even when the long-term working format is a GIS dataset.

A workbook becomes spatially useful only when sheets include coordinates, geometry text, or fields that another tool can interpret as location data.

Common Workflows

Common use cases

Asset inventories, inspection logs, and project lists with coordinate columns.
QA packages sent to non-GIS stakeholders for comments and corrections.
Import and export handoffs between GIS tools and spreadsheet-driven business processes.

Ecosystem

Where you will encounter it

Spreadsheet review and office workflows.
Business reporting, QA, and stakeholder feedback loops.
Lightweight tabular exchange between GIS and non-GIS teams.

Strengths

Why teams choose Microsoft Excel

Extremely familiar to non-GIS users and easy to review manually.
Multi-sheet workbook structure is convenient for tabular reporting.
Good final-delivery option when the recipient needs editable rows more than native geometry behavior.

Limitations

Where Microsoft Excel gets awkward

XLSX is not a true spatial format and does not natively model geometry the way GIS containers do.
Large automated pipelines are often easier to manage in simpler text or database-backed formats.
Spatial metadata, CRS information, and complex geometry handling are less explicit than in GIS-native outputs.

Conversion steps

How to convert XLSX to MapInfo TAB online

1. Add your XLSX file

Drop the source data into the converter above. Keep any required sidecar files together when your dataset uses them.
2. Check the map preview

Inspect the geometry and attributes before exporting so you can spot missing layers or coordinate-system issues.
3. Download MapInfo TAB

Run the conversion and save the generated MapInfo TAB output directly from your browser. Your source file stays on your device.

File Structure

Common file extensions and sidecar files

.xlsx

Main Excel workbook file that can contain one or more sheets of tabular data.

coordinate columns

Latitude, longitude, easting, northing, or similar fields that let GIS tools interpret spreadsheet rows spatially.

multiple sheets

Workbook structure that may separate tabs by theme, status, or export purpose.

Conversion Rationale

Why convert Microsoft Excel to MapInfo?

Teams commonly convert Microsoft Excel into MapInfo when they need compatibility with MapInfo Pro and business mapping environments.

Teams convert XLSX when spreadsheet rows need to become proper geometries in a map-ready format.
They also export into XLSX when stakeholders need an editable table for review instead of a specialized GIS file.
MapInfo TAB remains common in organizations with established MapInfo desktop workflows.
Exporting to MapInfo is useful when recipients expect TAB datasets and associated sidecar files.

FAQ

Frequently asked questions about Microsoft Excel to MapInfo

What do I need before converting Microsoft Excel to MapInfo?

Use a header row and explicit numeric longitude/latitude columns in decimal degrees. Addresses alone are not coordinates. For mixed DMS or reversed columns, clean the table first.

What exactly is in the MapInfo download?

MapInfo output can contain multiple files packaged as ZIP. Compare the result against the source before sharing.

How large a Microsoft Excel file can I convert?

The practical limit depends on browser memory, geometry complexity and the conversion driver. Start with a small sample. There is no guaranteed unlimited size and no cloud fallback or payment tier for large files.

Are my Microsoft Excel files sent to a server?

File parsing and conversion run on your device. The page, WebAssembly and map basemaps can make network requests; choosing a file does not upload its contents. Load the required libraries before attempting offline work.

Can I fix DMS, dirty cells or reversed latitude and longitude here?

Use the coordinate cleanup tool to choose the worksheet and columns, parse supported decimal/DMS values, review rejected rows and export KML or GeoJSON. Ambiguous coordinate order needs a known location; it is not silently guessed.

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