How to open .SL files on iOS
To open .SL files on iOS, in the Files app, try Quick Look; if it does not render well, share the file to a text editor app to view the XML/text and then manually open any URL in Safari.
Step-by-step instructions
- In the Files app, try Quick Look; if it does not render well, share the file to a text editor app to view the XML/text and then manually open any URL in Safari.
Common issues
The .SL file opens as gibberish or a single long line
Many SL files are XML and may not be nicely formatted; some may also use a character encoding your viewer does not display well.
- Open the file in a code editor that supports XML and reformat/pretty-print it for readability.
- Check the XML header (if present) for encoding information and reopen the file with the correct encoding if your editor allows it.
Nothing happens when I double-click the .SL file
Modern systems usually do not have a default handler for WAP SL (text/vnd.wap.sl), so the OS may not know what app should open it.
- Open it with a text editor to view the content (XML or plain text).
- If your goal is to visit the referenced web page, copy the URL from the file and open it in a normal browser.
I expected a license document but it looks like XML (or vice versa)
The .sl extension can be used for different kinds of text-based content; the most common “special” meaning is WAP Service Loading (XML), but some .sl files are just software license text.
- Look for XML tags such as an XML declaration or SL elements; if present, treat it as WAP SL XML.
- If it is plain legal text, treat it as a normal text document and open it in any text editor.
Security note
WAP Service Loading documents are designed to cause a client to load a URL; treat an unexpected .SL file like an untrusted link and inspect the URL in a text editor before visiting it.