Here are some suggested revisions to your text:
Installing an XGF file requires connecting your Xiegu radio to a computer. Then run Xiegu’s Tera Term software to update the firmware. Refer to Xiegu’s website for complete firmware upgrade instructions.
Many share .xgf files without explaining how to use them. This makes it hard to know which programs can edit, convert, or print these files. To help, we explain .xgf files here. Most .xgf files contain binary data. They have medium popularity across devices. While there’s more to know, that covers the basics.
You may see “Select an app to open this” when double-clicking an .xgf file. That means Windows doesn’t have a default program set. But we can still explain what software might open or convert XGF files.
The XGF format efficiently stores games. A tool converts between XGF and SGF formats. It can also merge games into one file. For example, collect all games by a Go professional. Simply add and remove files from the dialog. The tool will save results to your chosen folder.
I have reordered some sentences, removed unnecessary details, and shortened sentences to vary length between 6-17 words. Let me know if you would like me to make any other changes!
yEd Graph Editor