import bpy
import xlsxwriter

fname = r"C:\Users\DealgaMcArdle\Documents\Blender Experiments\creating_EXCEL_FILE\excel_example\xls_output.xlsx"

# prepare data  
sdata = bpy.data.texts['data'].as_string().split('\n')
names_and_dateissued = [s.split(' ') for s in sdata]
structured_data = {}

for name, date in names_and_dateissued:
    filename, revision = name.split('_v')
    revision = revision.replace('.pdf', '')

    if not filename in structured_data:
        structured_data[filename] = []
    structured_data[filename].append([revision, date])

print(structured_data)
workbook = xlsxwriter.Workbook(fname)
worksheet = workbook.add_worksheet()
 
revision_cell_id = {'C01': 'D', 'C02': 'E', 'C03': 'F', 'C04': 'G'}

for idx, i in enumerate(structured_data, 1):
    print(idx, i)
    cell_file_id = f'A{idx}'
    cell_file_descriptor = f'B{idx}'
    worksheet.write(cell_file_id, i)
    worksheet.write(cell_file_descriptor, 'description')
    for (rev, rdate) in structured_data[i]:
        lookup = revision_cell_id[rev]
        revison_cell = f'{lookup}{idx}'
        worksheet.write(revison_cell, rev)
    
workbook.close()