It looks like this conversion is related to attempts to convert LizardTech MrSID images (.sid) to Enhanced Compressed Wavelet images (.ecw), formats typically used to store map and other GIS data. You will most likely need some dedicated GIS software or converter for that.
Home > Search converters: sid to ecw
Conversion of sid file format to ecw file format beta
Search for sid to ecw converter or software able to handle these file types.
Convert LizardTech MrSID image file format to Enhanced Compressed Wavelet image format.
We have found 2 software records in our database eligible for .sid to .ecw file format conversion.
Microsoft Windows software 
- convert sid to ecw on Windows
ArcGIS
A group of GIS (geographic information system) applications
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from sid file | Yes, ArcGIS supports sid file conversion as a source file type. | No | No | No | No | No | No | No |
to ecw file | Yes, ArcGIS supports ecw file conversion as a target file type. | No | No | No | No | No | No | No |
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned sid to ecw. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Canvas
A drawing software used to create technical illustrations and graphics
Additional links: Open sid file, Open ecw file
SID
Files with sid extension are almost always special images in MrSID (Multi-resolution Seamless Image Database) format, developed by LizardTech. Used in GIS and satellite imagery software.
ECW
Files with ecw extension can be often found as pictures in Enhanced Compressed Wavelet image file format used for aerial and satellite imagery.
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