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ลองกลับไปอ่าน Excel Workspace ประกอบก็ได้นะDefine and use names in formulas Office Support Education Details Define names from a selected range Select the range you want to name, including the row or column labels Select Formulas > Create from Selection In the Create Names from Selection dialog box, designate the location that contains the labels by selecting the Top row,Left column, Bottom row, or RightA commaseparated values (CSV) file is a delimited text file that uses a comma to separate values Each line of the file is a data recordEach record consists of one or more fields, separated by commasThe use of the comma as a field separator is the source of the name for this file formatA CSV file typically stores tabular data (numbers and text) in plain text, in which case each line will เปล ยนส ตรย งยากให เข าใจง ายด วย Define Name Ezoffice Define name excel คือ