I need to go over 20 seperate excel files (.xls) and grap values based on certain patterns and then copy them into new .XLSX sheets. The total amount of rows is close to 1 million.
I think an Excel sheet with one million lines is a clear case for using a relational database (plus a report generator) instead of Excel. If you have no better idea, use MS Access as a front-end to some stripped-down MS SQL Server (last time I used it the stripped-down version was called MSDE) or PostgreSQL.
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||