Hello

I downloaded site with e-books. There are books if fb2, txt, doc, rar formats

But I got something strange. Downloaded files have extensions ending with
"_;"

for example

"55276.doc_;"
"451-ZA-FARENGEYTOMc1fb.rar_;"
"Erpidy_na_planeti_Zemlia.doce544.zip_;"
"Iren_rozdobudko_eskort_u_smerta38c.fb2_;"

How to fix it, to get normal file extensions without "_;"