Make sure the file resides in the project folder if you're referencing it via a relative path. If not, use the absolute path to the file with the file extension.
java.io.FileNotFoundException: C:\Users\trilogy\datasheet.xlsx (The system cannot find the file specified)at java.io.FileInputStream.open(Native Method)at java.io.FileInputStream.
(Unknown Source)at java.io.FileInputStream. (Unknown Source)at com.java.utilities.ExcelManager.main(ExcelManager.java:67)