What is the problem? Please be detailed.
What ODK tool and version are you using? And on what device and operating system version?
Tablet , ODK excel
What steps can we take to reproduce the problem?
What is the problem , please help me to convert the file
What you have you tried to fix the problem?
I tried to find out why but actually didn't understand what is the problem and why this file can't be converted
Anything else we should know or have? If you have a test form or screenshots or logs, attach here.