How to import data from one excel workbook to another using VBA

I have two different files.

1. Name of the Source file - "Dump"
2. Name of the target file - "SLA File"

I have the data in source file from A to G column and from M to z column.

Only the data in mentioned column of source file has to be imported to the target file using VBA macro.

Please suggest me how.

Thank you in advance.