Importing data from Folder through Power Query

earthworm

Well-known Member
Joined
May 19, 2009
Messages
766
Office Version
  1. 2019
  2. 2016
Platform
  1. Windows
I have 30 files . Each files contains data of approx 6 Million. I imported the folder through Power query. Then I get and transform data and then I used the formula Excel.Workbook(Content). When I am expanding the column power query is taking too much time in loading file before I move to next step of expanding the column to show data. Is there any faster way ? Because I have to wait for hours before moving to next step. Please advice
 
Here are some thoughts:
  1. are you merging or appending? Appending is generally faster than merging but you may not have a choice
  2. I suggest you use the UI, not manually written queries. Usually the UI knows best
  3. You say it is "too slow" but you don't specify how long it is taking. I would expect such a query to take about 3-5 mins assuming pure append.
  4. What is the file extension? if it is XLSX it will probably be faster than XLSB
I am appending in power query through formula. I thought binary is faster . Are you sure binary is slower ? . UI suggest is noted
 
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