I tried User Import Tool on a test server (W2003R2) and everything worked fine.
Then I installed on a production server, and when I try to map fileds in "Map Custom Fields" all fileds on the left (FROM) are on the same row, instead of being one field each row (see image attached). This way I can't proceed with mapping.
I tried also with the example .csv coming with the tool: same issue.
Any ideas or solution?
The tool uses the system regional settings for a list separator. it looks like the separators in your CSV file may be out of sync with the regional list separator on your system. If you are using the exact same CSV file on both systems compare the two systems' regional settings. You can change the setting on your non-working system just long enough to import the file.