Hi, I just had this error, I tried using excel and csv.
It seems to be a problem with (all) profile fields only...

Records:1
Error could not set extended property value:86
Error could not set extended property value:91
Error could not set extended property value:92
Error could not set extended property value:109
Error could not set extended property value:110
Error could not set extended property value:98
Error could not set extended property value:114
Error could not set extended property value:115
Error could not set extended property value:116

Never mind, used an old version, upgraded to 1.5.5 and it works...