wired database tables

hello
my database is in wired format, my tables have some crazy codes, can anyone tell me whats this is and if its a problem?
Optimize Tables
2WXe27rf_blc_filters
2WXe27rf_blc_instances
2WXe27rf_blc_links
2WXe27rf_blc_synch
2WXe27rf_commentmeta
2WXe27rf_comments
2WXe27rf_cp_calculated_fields_form_discount_codes
2WXe27rf_cp_calculated_fields_form_posts
2WXe27rf_cp_calculated_fields_form_settings
2WXe27rf_cp_feeds
2WXe27rf_cpf_custom_products
2WXe27rf_cpf_google_merchant_feed_products
2WXe27rf_duplicator_packages
2WXe27rf_ewwwio_images
2WXe27rf_gaplus_login
2WXe27rf_google_merchant_cp_feeds
2WXe27rf_layerslider
2WXe27rf_links
2WXe27rf_ngg_album
2WXe27rf_ngg_gallery
2WXe27rf_ngg_pictures
2WXe27rf_optin_meta
2WXe27rf_optins
2WXe27rf_options
2WXe27rf_pmxe_exports
2WXe27rf_pmxe_posts
2WXe27rf_pmxe_templates
2WXe27rf_pmxi_files
2WXe27rf_pmxi_history
2WXe27rf_pmxi_imports
2WXe27rf_pmxi_posts
2WXe27rf_pmxi_templates
2WXe27rf_popover_ip_cache
2WXe27rf_postmeta
2WXe27rf_posts
2WXe27rf_sm_advanced_search_temp
2WXe27rf_term_relationships
2WXe27rf_term_taxonomy
2WXe27rf_termmeta
2WXe27rf_terms
2WXe27rf_usermeta
2WXe27rf_users
2WXe27rf_wfBadLeechers
2WXe27rf_wfBlockedIPLog
2WXe27rf_wfBlocks
2WXe27rf_wfBlocksAdv
2WXe27rf_wfConfig
2WXe27rf_wfCrawlers
2WXe27rf_wfFileMods
2WXe27rf_wfHits
2WXe27rf_wfHoover
2WXe27rf_wfIssues
2WXe27rf_wfKnownFileList
2WXe27rf_wfLeechers
2WXe27rf_wfLockedOut
2WXe27rf_wfLocs
2WXe27rf_wfLogins
2WXe27rf_wfNet404s
2WXe27rf_wfReverseCache
2WXe27rf_wfSNIPCache
2WXe27rf_wfScanners
2WXe27rf_wfStatus
2WXe27rf_wfThrottleLog
2WXe27rf_wfVulnScanners
2WXe27rf_woocommerce_api_keys
2WXe27rf_woocommerce_attribute_taxonomies
2WXe27rf_woocommerce_downloadable_product_permissions
2WXe27rf_woocommerce_order_itemmeta
2WXe27rf_woocommerce_order_items
2WXe27rf_woocommerce_payment_tokenmeta
2WXe27rf_woocommerce_payment_tokens
2WXe27rf_woocommerce_sessions
2WXe27rf_woocommerce_shipping_zone_locations
2WXe27rf_woocommerce_shipping_zone_methods
2WXe27rf_woocommerce_shipping_zones
2WXe27rf_woocommerce_tax_rate_locations
2WXe27rf_woocommerce_tax_rates