2. Add a row to the table to record the training time range. For example, you can add a row below the first column, labeled "Training Time", and fill in the "Start Date" and "End Date" in the adjacent cells.

3. Add one or more columns to the table to record the date when the trainees completed the training. For example, you can add the title "Completion Date" in the second column under "Training Time".

4. According to the specific date when each trainee completed the training, fill in the date in the corresponding cell. You can use the date format to calculate the time limit for training completion.