Language assignment using pattern list is not showing proper result in SPUM4

Hello Experts,

We are trying to assign different languages to words in
SPUM4 as per note Note 871541 - Frequently used text patterns. But SAP system
is not showing any word by selecting any pattern list. For e.g If we try to
assign Japanese language to words using patterns_japanese.txt file, it gives 0
words selected as a result. We are not sure why system is not accepting any
standard list. Also Do we need to select any particular file format
(Unicode/ANSI/UTF-8)while downloading/uploading all words from vocabulary?

Thanks for your feedback.

Kalpesh