Replacing Data resolves to lost Formulas

[Shimazu]

When i want delete all my data on my sheet 'Export Freshbooks' and replace it with new data.

So i click on ok then... but when i do this all my Formulas Are gone....
My Formulas must stay no matter what.

The replaces data come frome a other workbook details

is there solution for this?

Thank you

 

[Shimazu]

I already try this

Select all the cells in the sheet
Press F5
Click Special
Click Constants
Deselect Logicals
click OK
Delete