You can purchase and download the following datasets to your computer. (Click on "get data" at each website to see pricing.)

Full-text data	Download nearly one billion words of data from COCA, in any of three different formats. Once downloaded, you can process this offline data in any way you want.
Word Frequency	Download lists of the top 60,000 lemmas in COCA, including the frequency by the eight main genres and nearly 100 sub-genres. You can also download a list with the frequency of the word forms (e.g. decide, decides, deciding, decided), as well as a list of the top 219,000 words (not lemmas) in COCA, including frequency by genre.
Collocates	Download lists with the top 200-300 collocates (nearby words) for the top 60,000 lemmas in COCA -- 13,500,000 node/collocate pairs in all.
N-grams	Download lists (in various formats) of all 2, 3, 4, and 5-word strings that occur at least four times in COCA -- more than 40 million n-grams in total.