Import Functionality

How can i import the file which is in filename="C:\Users\u0144514\Desktop\FileName.xls" location using http request.


Content-Disposition: form-data; name="__EVENTARGUMENT"


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Content-Disposition: form-data; name="__VIEWSTATE"

Z4rtjS+uXu9nHDLjXrPHtOXVWmSeAm0SI2uQwYUwMEB1fE7Y8DNVXZNagmFG+JNVb3tJlU0PCbyJA4zF1sBR1VpGcBUNJSkQxKEUPuLrfGxx9lBbWyHRLY1aSvT6zY4D6epLuTxzBFVHMcr9EZSytyvBSUUP5q7rTQ6YoVdNO5XfndO8HslcZDkwwlVNQ2vPMXrHZTxD4jJoqNjZLvyB/Qzupu1y90jIryf0Kx9rHZDMX2VqvX9Q7WHwnpD9Wjaeyfq8wzmJoFrkESxr3y7ktwotkBbDCkjwR4BH24D4hIgYK6d/oo7sbptAg0AH3Tx8Tvx/tqpz162rxxP70TbPoIkTeu2drM6I9YXcxUiwa+LM2Spnoixaz5UgDYqF8+QlmEGrv7xm9sRwk6Hb/djKww==
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Content-Disposition: form-data; name="__VIEWSTATEENCRYPTED"


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Content-Disposition: form-data; name="__EVENTVALIDATION"

LubleoUNnH+k4nwf7YH55kG5Hojtbj/VL2xBaotvayM61vouGFSlv0cND4cjC9Wp9UrRZWQ1r5GZfkJjFW83dn9yccfZsbNhirJokTx+rMvasnapkJo7q4wdifUfdAOxtid35vMUUj8uYj0ovS5nHJ5q7XLweCtrvEIDUtCv87SIuvNnbXAUAAqpwv+7zzQwIjEzP3SKtldATuVHO+6mE5gZoOnxYPGkaqrMoi9QOHoK6n9MDRG+cXPlfHGZhhzQ
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Content-Disposition: form-data; name="ImportFile"; filename="C:\Users\u0144514\Desktop\FileName.xls"
Content-Type: application/vnd.ms-excel