Turn FlatGeobuf datasets into an Excel spreadsheet anyone can open. Free, private and processed right in your browser.
Three steps, no software to install. Works on Windows, macOS, Linux and mobile.
01
Drop a .fgb file into the converter, or click to browse. Files up to 100 MB are supported.
02
Click Convert to XLSX. The file is processed locally, so your data is never uploaded to a server.
03
The XLSX file downloads straight to your device. Need another format? Pick a converter below.
Converted your FlatGeobuf file? Upload it to GISCARTA and turn it into an interactive map your team or clients can actually use.
Colour by attribute, cluster thousands of points, switch on 3D.
Charts and key numbers next to the map, updated as you filter.
Animate dated features and compare how places change.
Publish a read-only map, embed it on your site, or keep it private with role-based access.
No credit card. No GIS degree. Upload your data and start mapping in minutes.
FlatGeobuf is built for large datasets and cloud-native web maps. XLSX is built for business reporting and non-GIS teams.
FlatGeobuf
FlatGeobuf is an open, binary vector format built on FlatBuffers. It stores features with a built-in spatial index, so software can read just the area it needs.
It is one of the fastest formats to read and write, and it can be streamed over HTTP from cloud storage without a map server.
XLSX
XLSX is the Microsoft Excel workbook format. Geographic data sits in rows, with location stored in latitude/longitude columns or as WKT text.
It is how most business teams already work with data. A sheet holds up to 1,048,576 rows and has no built-in notion of geometry or coordinate systems.
Your FlatGeobuf file
A FlatGeobuf file holds one layer.
The XLSX output
Geometry is stored as text — coordinates or WKT — and each sheet is limited to 1,048,576 rows.
Your file never leaves your device: conversion runs in your browser, for files up to 100 MB.
Send FlatGeobuf data to colleagues who live in Excel and never open a GIS.
Summarise FlatGeobuf attributes with pivot tables, charts and formulas.
Edit attributes in a familiar tool, then put the result back on a map.
Every converter runs in your browser and keeps your files on your device.
