Convert E00 to GML Online - Free & Fast

What is E00?

ArcInfo Exchange (E00) is a proprietary interchange format developed by ESRI for exporting and importing Arc/Info coverages, encoding vector topology, attributes, and raster data in an ASCII text file for data migration between GIS systems.

What is GML?

GML (Geography Markup Language) is the OGC standard XML grammar for encoding geographic features with full coordinate reference system support.

When Should You Use E00 vs GML?

E00 vs GML: Key Differences

• •The core technical difference: E00 relies on lossy compression whereas GML uses lossless compression.
• •Moving from E00 (lossless) to GML (lossless) means the output file will be larger — but every bit of the original is preserved.
• •Alpha channel support: GML lacks transparency support.
• •File sizes: E00 files typically range 100KB to several GB depending on coverage complexity and GML files Larger than Shapefile due to verbose XML structure.
• •Use case fit: E00 targets legacy arcinfo data migration, gis archival data recovery and GML targets ogc-compliant geospatial data exchange, enterprise gis — your choice depends on which workflow stage you are serving.

Advantages of E00

• ✓At its core, E00 relies on lossy encoding — a design choice that makes it perfect for Legacy ArcInfo data migration, GIS archival data recovery.
• ✓You won't run into compatibility issues with E00 — it's a universal standard across platforms.
• ✓File size management with E00: aggressive compression with minimal visible quality loss.
• ✓Every major application in the Legacy ArcInfo data migration, GIS archival data recovery space supports E00 natively.

Advantages of GML

• ✓The lossless nature of GML means file sizes stay reasonable while handling OGC-compliant geospatial data exchange, enterprise GIS efficiently.
• ✓From mobile devices to enterprise servers, GML is recognized and supported everywhere.
• ✓The trade-off for GML's perfection is larger files — but for archival work, it is worth every megabyte.
• ✓GML is a first-class citizen in all major software ecosystems, from creative suites to development environments.

Common Use Cases for E00 to GML Conversion

Industry Applications

Best Practices for E00 to GML Conversion

• →For E00 to GML: verify that field name length limits in GML do not truncate attribute column names
• →Test a subset of features first — especially if the dataset contains mixed geometry types
• →Confirm that multi-part geometries (multi-polygons, multi-lines) remain intact after conversion
• →Check for any required sidecar files (.prj, .shx, .qpj) that the target format needs
• →Validate the converted file using a GIS validation tool before relying on it in production

Troubleshooting E00 to GML Conversion

• !GML features land in the wrong place after E00 to GML → verify the CRS/projection; mismatched coordinate systems shift geometry
• !Attribute columns missing in GML → some GIS formats have field name length or type limits; rename or cast columns first
• !E00 to GML drops the z/elevation dimension → pick a target format that supports 3D geometry
• !GML file won't open in your GIS app → confirm the format version and any required sidecar files (e.g. .prj, .shx) are present

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