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Windows CSV Filter Program

I need a program that:

1: Compares 2 CSV files and outputs the unique rows to a new file.

- csv A (storage) compare to csv B(filter) export unique to csv C

2: Updates First file with the unique rows.

-append csv A with csv C

-csv A only appends column one of csv C

3. Separate feature to quick remove duplicates from given CSV file and export.

Note: Only the first column should be used for comparison. but full row should be exported.

-csv B may have 2 columns but only column 1 should be used for comparison, however csv C should contain both columns when exported.

Must be quick and work with very large files up to 6 GB

Skills: C# Programming, Visual Basic, Windows Desktop

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About the Employer:
( 26 reviews ) Regina, Canada

Project ID: #17957887

34 freelancers are bidding on average $99 for this job

jaylancer43

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7.8
schoudhary1553

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(143 Reviews)
7.3
sumon355

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7.2
limillion819

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5.3
Iamtuheedakram

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4.7
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(16 Reviews)
4.3
dinhfreedom

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CuttingEdge89

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abramoth

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3.0
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3.1
inthebush

Hi Dear Manager! Just read your proposal and understood most of all what you want. Can you share your idea more detail? ✦ Related Skills(Application) ✔ C++ - ★★★★★ ✔ C# - ★★★★★ ✔ Qt - ★★★★☆ ✔ Java - ★★★★★ ✦ More

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2.6
N1RA

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2.1
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