cells source code：
src.zip (1.6 KB)
origin excel:
转大写.xlsx.zip (7.4 KB)
converted problem:
对比图1.png (9.5 KB)
The result was not right，Please have a check.
@hucq_landray_com_cn,
I can not reproduce the problem with Aspose.Cells for Java 20.6. Could you please try latest version and let us know your feedback. Output files are attached: output.zip (5.4 KB)