データクレンジング – Excelを制する者は人生を制す https://excel-master.net Excelでの消耗に、終止符を。 QOL向上とDX化の実現は、あなたのExcelスキルの向上から。 Sun, 23 Aug 2026 02:41:51 +0000 ja hourly 1 https://wordpress.org/?v=7.1.3 https://excel-master.net/wp-content/uploads/2021/12/Excelブログ_ファビコン-150x150.png データクレンジング – Excelを制する者は人生を制す https://excel-master.net 32 32 【パワークエリ】「列の選択」の使い方｜維持・削除する列を一括選択する方法 https://excel-master.net/data-utilization/data-shaping/data-cleansing/power-query-selection-column/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/power-query-selection-column/#respond Sat, 14 Jun 2025 02:07:27 +0000 https://excel-master.net/?p=15654 https://excel-master.net/data-utilization/data-shaping/data-cleansing/power-query-selection-column/feed/ 0 【関数】セルの値のデータ型を特定できる「TYPE」の使い方 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-type/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-type/#respond Sat, 04 Feb 2023 05:27:46 +0000 https://excel-master.net/?p=12752 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-type/feed/ 0 【関数】数値や日付/時刻を指定した表示形式の「文字列」に変換できる「TEXT」の使い方 https://excel-master.net/data-utilization/data-shaping/data-cleansing/text-function/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/text-function/#respond Sat, 28 Jan 2023 06:00:10 +0000 https://excel-master.net/?p=7050 https://excel-master.net/data-utilization/data-shaping/data-cleansing/text-function/feed/ 0 【関数】文字列形式の時刻のデータ型を「時刻」（シリアル値）に変換できる「TIMEVALUE」の使い方 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-timevalue/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-timevalue/#respond Sat, 21 Jan 2023 02:22:57 +0000 https://excel-master.net/?p=12719 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-timevalue/feed/ 0 【関数】文字列形式の日付のデータ型を「日付」（シリアル値）に変換できる「DATEVALUE」の使い方 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-datevalue/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-datevalue/#respond Sat, 14 Jan 2023 03:38:19 +0000 https://excel-master.net/?p=12704 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-datevalue/feed/ 0 【関数】文字列として入力された数字のデータ型を「数値」に変換できる「VALUE」の使い方 https://excel-master.net/data-utilization/data-shaping/data-cleansing/string-value/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/string-value/#respond Sat, 07 Jan 2023 06:00:08 +0000 https://excel-master.net/?p=1930 https://excel-master.net/data-utilization/data-shaping/data-cleansing/string-value/feed/ 0 【関数】文字列中の指定の文字を新しい文字へ置換できる「SUBSTITUTE」の使い方 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-substitute/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-substitute/#respond Fri, 30 Dec 2022 13:35:50 +0000 https://excel-master.net/?p=12679 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-substitute/feed/ 0 【関数】文字列の印刷できない文字（改行等）を削除できる「CLEAN」の使い方 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-clean/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-clean/#respond Sat, 24 Dec 2022 04:56:50 +0000 https://excel-master.net/?p=12659 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-clean/feed/ 0 【関数】文字列の不要なスペースを削除できる「TRIM」の使い方 https://excel-master.net/data-utilization/data-shaping/data-cleansing/trim/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/trim/#respond Sat, 17 Dec 2022 04:30:09 +0000 https://excel-master.net/?p=1972 https://excel-master.net/data-utilization/data-shaping/data-cleansing/trim/feed/ 0 【関数】英字の単語の先頭文字のみ大文字（以降は小文字）に変換できる「PROPER」の使い方 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-proper/ https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-proper/#respond Sat, 10 Dec 2022 02:25:50 +0000 https://excel-master.net/?p=12625 https://excel-master.net/data-utilization/data-shaping/data-cleansing/worksheet-function-proper/feed/ 0