In 2002, the National Kidney Foundation published treatment guidelines that identified five stages of Chronic Kidney Disease (CKD) based on declining GFR measurements. The guidelines recommend different actions based on the stage of kidney disease.
CSV (Comma Separated Value) was a file format devised to store tabular data. It uses commas to separate each entry in a row and the newline symbol to go to the next row. Excel is a more recent spreadsheet application from Microsoft and it saves the data with its own file format.
Browse for the CSV file and open it as usual by double-click. If you are opening a .csv file, Excel will open it straight away and display the data in a new workbook. If you have selected a text file (.txt), Excel will start the Import Text Wizard. See Importing CSV to Excel for full details. Note.