sitemaps confusion

[anilrgowda]

i am finally generated the sitemap so it has more than 50,000 urls so i created sitemap1.xml and sitemap2.xml..
so should i add sitemap1.xml 2 goodgle webmasters are only sitemap.xml is sufficent ?

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[XML-Sitemaps Support]

Hello,

all inner sitemaps should be found automatically by Google.