[Koha] Regarding Cataloging

Hi koha, I have koha 3.08 and facing problems in cataloging modules. I have cataloged records in koha using excel file being converted into marc file and then uploaded in koha. It was uploaded successfully and now i have to make some changes in the Catalogued item and now i don't have the excel file which i have migrated earlier into marc. As editing single record one by one is a tedious job. So is there any way to take back the excel file from koha with all the fields which i have entered. Thanks in advance.