Surfer 5 and 6 SRF files are no longer supported by Surfer. To convert this file to a format that can be read, please open and resave it in either Surfer 7, 8, 9 or 10. For more information, please contact email@example.com.
To convert these old files so you can open them in newer versions of Surfer, you can use our free online file converter. This knowledge base article details how to perform the conversion: How can I convert my old Surfer/Grapher files so I can open them in newer versions?
Updated October 16, 2018