select all which you want to remove formula then copy all and click right button in colum A1 and past special select value then ok its remove all formula and your data is safe .
if you want to delet all data then slect all and delet selected row. file will be blank.
If you have basic knowledge of how macros work, then this is the code for removing all the formulas in the workbook and replacing with the values calulated by the formula.
Sub RemoveFormulas()
Dim ws As Worksheet
For Each ws In Worksheets
With ws.UsedRange
.Value = .Value
End With
Next ws
End Sub
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If you have basic knowledge of how macro work in Excel,
Then this is the code for the macro.
Sub RemoveFormulas()
Dim ws As Worksheet
For Each ws In Worksheets
With ws.UsedRange
.Value = .Value
End With
Next ws
End Sub