# DDI Central CSV files - Windows Here is the list of all the CSV samples files for DNS and DHCP importing operations **Note:** All the files listed are in **.xlsx** format, and it is only for reference purpose. | Name | File | Purpose | |---|---|---| | Windows server bulk import - With credential name | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/with_credentials.xlsx) | Sample file for bulk importing windows servers with the credential name | | Windows server bulk import - Without credential name | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/without_credentials.xlsx) | Sample file for bulk importing windows servers without the credential name | | DHCP Subnet | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/ddifiles/subnet_linux_csv_sample_1.xlsx) | Sample file for importing DHCP subnets | | IPv4 Host | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/host_linux_ipv4_sample.xlsx) | Sample file for import IPv4 host data | | IPv6 Host | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/host_linux_ipv6_sample.xlsx) | Sample file for import IPv6 host data | | Static Subnet | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/static_subnet.xlsx) | Sample file for importing static subnets data | | Static Lease | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/sample_staticlease.xlsx) | Sample file for importing static lease data/td> | | DHCP Hardware MAC address | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/mac_list_1000.xlsx) | Sample file for importing MAC addresses in DHCP hardware template | | IPAM Tower - Single sheet | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/ipam_import_-_single_sheet.xlsx) | Sample file for importing clusters, sites, subnets, and supernets into IPAM tower through single sheet | | IPAM Tower - Multiple sheets | [Download](https://www.manageengine.com/sites/meweb/images/dns-dhcp-ipam/ipam_import_-_multi_sheets.xlsx) | Sample file for importing clusters, sites, subnets, and supernets into IPAM tower through multiple sheet | **Note:** DDI Central supports only UTF-8 encoding for CSV import files. If your CSV files use ASCII encoding, convert them to UTF-8 before importing them.